Material¶

The Material commands are used to define the materials in a model.

Create materials¶

In Mdb¶

class MaterialModel(

name,

description='',

stefanBoltzmann=None,

absoluteZero=None,

waveFormulation=NOT_SET,

modelType=STANDARD_EXPLICIT,

universalGas=None,

copyConstraints=1,

copyConnectors=1,

copyInteractions=1,

)[源代码]¶

基类：ModelBase

Abaqus creates a Model object named Model-1 when a session is started.

备注

This object can be accessed by:

mdb.models[name]

备注

Check MaterialModel on help.3ds.com/2020.

Public Data Attributes:

Inherited from ModelBase

name	A String specifying the repository key.
stefanBoltzmann	None or a Float specifying the Stefan-Boltzmann constant.
absoluteZero	None or a Float specifying the absolute zero constant.
waveFormulation	A SymbolicConstant specifying the type of incident wave formulation to be used in acoustic problems.
universalGas	None or a Float specifying the universal gas constant.
noPartsInputFile	A Boolean specifying whether an input file should be written without parts and assemblies.
endRestartStep	A Boolean specifying that the step specified by restartStep should be terminated at the increment specified by restartIncrement.
shellToSolid	A Boolean specifying that a shell global model drives a solid submodel.
lastChangedCount	A Float specifying the time stamp that indicates when the model was last changed.
description	A String specifying the purpose and contents of the Model object.
restartJob	A String specifying the name of the job that generated the restart data.
restartStep	A String specifying the name of the step where the restart analysis will start.
globalJob	A String specifying the name of the job that generated the results for the global model.
copyConstraints	A boolean specifying the status of constraints created in a model, in the model which instances this model.
copyConnectors	A boolean specifying the status of connectors created in a model, in the model which instances this model.
copyInteractions	A boolean specifying the status of interactions created in a model, in the model which instances this model.
keywordBlock	A KeywordBlock object.
amplitudes	A repository of Amplitude objects.
profiles	A repository of Profile objects.
boundaryConditions	A repository of BoundaryCondition objects.
constraints	A repository of ConstrainedSketchConstraint objects.
analyticalFields	A repository of AnalyticalField objects.
discreteFields	A repository of DiscreteField objects.
predefinedFields	A repository of PredefinedField objects.
interactions	A repository of Interaction objects.
interactionProperties	A repository of InteractionProperty objects.
contactControls	A repository of ContactControl objects.
contactInitializations	A repository of ContactInitialization objects.
contactStabilizations	A repository of ContactStabilization objects.
linkedInstances	A tuple of tuples of Strings specifying the linked child PartInstance name in the current model to the corresponding parent PartInstance name in a different model.
linkedParts	A tuple of tuples of Strings specifying the linked child Part name in the current model to the corresponding parent Part name in a different model.
loads	A repository of Load objects.
materials	A repository of Material objects.
calibrations	A repository of Calibration objects.
sections	A repository of Section objects.
remeshingRules	A repository of RemeshingRule objects.
sketches	A repository of ConstrainedSketch objects.
parts	A repository of Part objects.
steps	A repository of Step objects.
featureOptions	A FeatureOptions object.
adaptiveMeshConstraints	A repository of AdaptiveMeshConstraint objects.
adaptiveMeshControls	A repository of AdaptiveMeshControl objects.
timePoints	A repository of TimePoint objects.
filters	A repository of Filter objects.
integratedOutputSections	A repository of IntegratedOutputSection objects.
fieldOutputRequests	A repository of FieldOutputRequest objects.
historyOutputRequests	A repository of HistoryOutputRequest objects.
optimizationTasks	A repository of OptimizationTask objects.
tableCollections	A repository of TableCollection objects.
eventSeriesTypes	A repository of EventSeriesType objects.
eventSeriesDatas	A repository of EventSeriesData objects.
restartIncrement	An Int specifying the increment, interval, iteration or cycle where the restart analysis will start.
rootAssembly	An Assembly object.

Public Methods:

Material(name[, description, materialIdentifier])

This method creates a Material object.

Inherited from ModelBase

__init__(name[, description, ...])	This method creates a Model object.
ModelFromInputFile(name, inputFileName)	This method creates a Model object by reading the keywords in an input file and creating the corresponding Abaqus/CAE objects.
ModelFromOdbFile(name, odbFileName)	This method creates a Model object by reading an output database and creating any corresponding Abaqus/CAE objects.
ModelFromNastranFile(modelName, inputFileName)	This method creates a Model object by reading the keywords in a Nastran bulk data file or Nastran input file and creating any corresponding Abaqus/CAE objects.
setValues([description, noPartsInputFile, ...])	This method modifies the Model object.

---

Member Details:

Material(name, description='', materialIdentifier='')[源代码]¶

This method creates a Material object.

备注

This function can be accessed by:

mdb.models[name].Material

备注

Check Material on help.3ds.com/2020.

参数:¶

name¶

A String specifying the name of the new material.

description=''¶

A String specifying user description of the material. The default value is an empty string.

materialIdentifier=''¶

A String specifying material identifier for customer use. The default value is an empty string.

返回:¶

A Material object.

返回类型:¶

Material

In Odb¶

class MaterialOdb(name, analysisTitle='', description='', path='')[源代码]¶

基类：OdbBase

The Odb object is the in-memory representation of an output database (ODB) file.

备注

This object can be accessed by:

import odbAccess
session.odbs[name]

备注

Check MaterialOdb on help.3ds.com/2020.

Public Data Attributes:

Inherited from OdbBase

isReadOnly	A Boolean specifying whether the output database was opened with read-only access.
amplitudes	A repository of Amplitude objects.
filters	A repository of Filter objects.
rootAssembly	An OdbAssembly object.
jobData	A JobData object.
parts	A repository of OdbPart objects.
materials	A repository of Material objects.
steps	A repository of OdbStep objects.
sections	A repository of Section objects.
sectionCategories	A repository of SectionCategory objects.
sectorDefinition	A SectorDefinition object.
userData	A UserData object.
customData	A RepositorySupport object.
profiles	A repository of Profile objects.

Public Methods:

Material(name[, description, materialIdentifier])

This method creates a Material object.

Inherited from OdbBase

__init__(name[, analysisTitle, description, ...])	This method creates a new Odb object.
close()	This method closes an output database.
getFrame(frameValue[, match])	This method returns the frame at the specified time, frequency, or mode.
save()	This method saves output to an output database (.odb ) file.
update()	This method is used to update an Odb object in memory while an Abaqus analysis writes data to the associated output database.

---

Member Details:

Material(name, description='', materialIdentifier='')[源代码]¶

This method creates a Material object.

备注

This function can be accessed by:

session.odbs[name].Material

备注

Check Material on help.3ds.com/2020.

参数:¶

name¶

A String specifying the name of the new material.

description=''¶

A String specifying user description of the material. The default value is an empty string.

materialIdentifier=''¶

A String specifying material identifier for customer use. The default value is an empty string.

返回:¶

A Material object.

返回类型:¶

Material

Assign properties to the material¶

class Material(name, description='', materialIdentifier='')[源代码]¶

基类：MaterialBase

A Material object is the object used to specify a material. The Material object stores the various settings that determine how a material behaves. A material is created by combining one or more individual material options and sub options. A particular material option is associated with the Material object through a member. For example: the acousticMedium member may contain an AcousticMedium object. The alternative of having a MaterialOption abstract base class and a container of MaterialOptions was rejected because it would make it more difficult to enforce the fact that one Material object cannot contain two AcousticMedium objects, for example.

备注

This object can be accessed by:

import material
mdb.models[name].materials[name]
import odbMaterial
session.odbs[name].materials[name]

The corresponding analysis keywords are:

• MATERIAL

备注

Check Material on help.3ds.com/2020.

Public Data Attributes:

Inherited from MaterialBase

acousticMedium	An AcousticMedium object.
brittleCracking	A BrittleCracking object.
capPlasticity	A CapPlasticity object.
castIronPlasticity	A CastIronPlasticity object.
clayPlasticity	A ClayPlasticity object.
concrete	A Concrete object.
concreteDamagedPlasticity	A ConcreteDamagedPlasticity object.
conductivity	A Conductivity object.
creep	A Creep object.
crushableFoam	A CrushableFoam object.
ductileDamageInitiation	A DamageInitiation object.
fldDamageInitiation	A DamageInitiation object.
flsdDamageInitiation	A DamageInitiation object.
johnsonCookDamageInitiation	A DamageInitiation object.
maxeDamageInitiation	A DamageInitiation object.
maxsDamageInitiation	A DamageInitiation object.
maxpeDamageInitiation	A DamageInitiation object.
maxpsDamageInitiation	A DamageInitiation object.
mkDamageInitiation	A DamageInitiation object.
msfldDamageInitiation	A DamageInitiation object.
quadeDamageInitiation	A DamageInitiation object.
quadsDamageInitiation	A DamageInitiation object.
shearDamageInitiation	A DamageInitiation object.
hashinDamageInitiation	A DamageInitiation object.
damping	A Damping object.
deformationPlasticity	A DeformationPlasticity object.
density	A Density object.
depvar	A Depvar object.
dielectric	A Dielectric object.
diffusivity	A Diffusivity object.
druckerPrager	A DruckerPrager object.
elastic	An Elastic object.
electricalConductivity	An ElectricalConductivity object.
eos	An Eos object.
expansion	An Expansion object.
fluidLeakoff	A FluidLeakoff object.
gapFlow	A GapFlow object.
gasketThicknessBehavior	A GasketThicknessBehavior object.
gasketTransverseShearElastic	A GasketTransverseShearElastic object.
gasketMembraneElastic	A GasketMembraneElastic object.
gel	A Gel object.
heatGeneration	A HeatGeneration object.
hyperelastic	A Hyperelastic object.
hyperfoam	A Hyperfoam object.
hypoelastic	A Hypoelastic object.
inelasticHeatFraction	An InelasticHeatFraction object.
jouleHeatFraction	A JouleHeatFraction object.
latentHeat	A LatentHeat object.
lowDensityFoam	A LowDensityFoam object.
magneticPermeability	A MagneticPermeability object.
mohrCoulombPlasticity	A MohrCoulombPlasticity object.
moistureSwelling	A MoistureSwelling object.
mullinsEffect	A MullinsEffect object.
permeability	A Permeability object.
piezoelectric	A Piezoelectric object.
plastic	A Plastic object.
poreFluidExpansion	A PoreFluidExpansion object.
porousBulkModuli	A PorousBulkModuli object.
porousElastic	A PorousElastic object.
porousMetalPlasticity	A PorousMetalPlasticity object.
regularization	A Regularization object.
solubility	A Solubility object.
sorption	A Sorption object.
specificHeat	A SpecificHeat object.
swelling	A Swelling object.
userDefinedField	A UserDefinedField object.
userMaterial	A UserMaterial object.
userOutputVariables	A UserOutputVariables object.
viscoelastic	A Viscoelastic object.
viscosity	A Viscosity object.
viscous	A Viscous object.
meanFieldHomogenization	A MeanFieldHomogenization object.

Public Methods:

AcousticMedium([acousticVolumetricDrag, ...])	This method creates an AcousticMedium object.
BrittleCracking(table[, ...])	This method creates a BrittleCracking object.
CapPlasticity(table[, ...])	This method creates a CapPlasticity object.
CastIronPlasticity(table[, ...])	This method creates a CastIronPlasticity object.
ClayPlasticity(table[, intercept, ...])	This method creates a ClayPlasticity object.
Concrete(table[, temperatureDependency, ...])	This method creates a Concrete object.
ConcreteDamagedPlasticity(table[, ...])	This method creates a ConcreteDamagedPlasticity object.
Conductivity(table[, type, ...])	This method creates a Conductivity object.
Creep(table[, law, temperatureDependency, ...])	This method creates a Creep object.
CrushableFoam(table[, hardening, ...])	This method creates a CrushableFoam object.
Damping([alpha, beta, composite, structural])	This method creates a Damping object.
DeformationPlasticity(table[, ...])	This method creates a DeformationPlasticity object.
Density(table[, temperatureDependency, ...])	This method creates a Density object.
Depvar([deleteVar, n])	This method creates a Depvar object.
Dielectric(table[, type, ...])	This method creates a Dielectric object.
Diffusivity(table[, type, law, ...])	This method creates a Diffusivity object.
DruckerPrager(table[, shearCriterion, ...])	This method creates a DruckerPrager object.
Elastic(table[, type, noCompression, ...])	This method creates an Elastic object.
ElectricalConductivity(table[, type, ...])	This method creates an ElectricalConductivity object.
Eos([type, temperatureDependency, ...])	This method creates an Eos object.
Expansion([type, userSubroutine, zero, ...])	This method creates an Expansion object.
FluidLeakoff([temperatureDependency, ...])	This method creates a FluidLeakoff object.
GapFlow(table[, kmax, ...])	This method creates a GapFlow object.
GasketMembraneElastic(table[, ...])	This method creates a GasketMembraneElastic object.
GasketThicknessBehavior(table[, ...])	This method creates a GasketThicknessBehavior object.
GasketTransverseShearElastic(table[, ...])	This method creates a GasketTransverseShearElastic object.
Gel(table)	This method creates a Gel object.
Hyperelastic(table[, type, moduliTimeScale, ...])	This method creates a Hyperelastic object.
Hyperfoam([testData, poisson, n, ...])	This method creates a Hyperfoam object.
Hypoelastic(table[, user])	This method creates a Hypoelastic object.
InelasticHeatFraction([fraction])	This method creates an InelasticHeatFraction object.
JouleHeatFraction([fraction])	This method creates a JouleHeatFraction object.
LatentHeat(table)	This method creates a LatentHeat object.
LowDensityFoam([elementRemoval, ...])	This method creates a LowDensityFoam object.
MagneticPermeability(table, table2, table3)	This method creates a MagneticPermeability object.
MohrCoulombPlasticity(table[, ...])	This method creates a MohrCoulombPlasticity object.
MoistureSwelling(table)	This method creates a MoistureSwelling object.
Permeability(specificWeight, ...[, type, ...])	This method creates a Permeability object.
Piezoelectric(table[, type, ...])	This method creates a Piezoelectric object.
Plastic(table[, hardening, rate, dataType, ...])	This method creates a Plastic object.
PoreFluidExpansion(table[, zero, ...])	This method creates a PoreFluidExpansion object.
PorousBulkModuli(table[, temperatureDependency])	This method creates a PorousBulkModuli object.
PorousElastic(table[, shear, ...])	This method creates a PorousElastic object.
PorousMetalPlasticity(table[, ...])	This method creates a PorousMetalPlasticity object.
Regularization([rtol, strainRateRegularization])	This method creates a Regularization object.
Solubility(table[, temperatureDependency, ...])	This method creates a Solubility object.
Sorption(absorptionTable[, lawAbsorption, ...])	This method creates a Sorption object.
SpecificHeat(table[, law, ...])	This method creates a SpecificHeat object.
Swelling(table[, law, ...])	This method creates a Swelling object.
UserMaterial([type, unsymm, ...])	This method creates a UserMaterial object.
UserOutputVariables([n])	This method creates a UserOutputVariables object.
Viscoelastic(domain, table[, frequency, ...])	This method creates a Viscoelastic object.
Viscosity(table[, type, ...])	This method creates a Viscosity object.
Viscous(table[, law, temperatureDependency, ...])	This method creates a Viscous object.
DuctileDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
FldDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
FlsdDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
JohnsonCookDamageInitiation(table[, ...])	This method creates A DamageInitiation object.
MaxeDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
MaxsDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
MkDamageInitiation(table[, definition, feq, ...])	This method creates A DamageInitiation object.
MsfldDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
QuadeDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
QuadsDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
MaxpeDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
MaxpsDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
ShearDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
HashinDamageInitiation(table[, definition, ...])	This method creates A DamageInitiation object.
MeanFieldHomogenization([angleSubdivision, ...])	This method creates a MeanFieldHomogenization object.

Inherited from MaterialBase

__init__(name[, description, materialIdentifier])	This method creates a Material object.
materialsFromOdb(fileName)	This methods creates Material objects by reading an output database.

---

Member Details:

AcousticMedium(

acousticVolumetricDrag=0,

temperatureDependencyB=0,

temperatureDependencyV=0,

dependenciesB=0,

dependenciesV=0,

bulkTable=(),

volumetricTable=(),

)[源代码]¶

This method creates an AcousticMedium object.

备注

This function can be accessed by:

mdb.models[name].materials[name].AcousticMedium
session.odbs[name].materials[name].AcousticMedium

备注

Check AcousticMedium on help.3ds.com/2020.

参数:¶

acousticVolumetricDrag=0¶

A Boolean specifying whether the volumetricTable data is specified. The default value is OFF.

temperatureDependencyB=0¶

A Boolean specifying whether the data in bulkTable depend on temperature. The default value is OFF.

temperatureDependencyV=0¶

A Boolean specifying whether the data in volumetricTable depend on temperature. The default value is OFF.

dependenciesB=0¶

An Int specifying the number of field variable dependencies for the data in bulkTable. The default value is 0.

dependenciesV=0¶

An Int specifying the number of field variable dependencies for the data in volumetricTable. The default value is 0.

bulkTable=()¶

A sequence of sequences of Floats specifying the following:

• Bulk modulus.

• Temperature, if the data depend on temperature.

• Value of the first field variable, if the data depend on field variables.

• Value of the second field variable.

• Etc.

volumetricTable=()¶

A sequence of sequences of Floats specifying the following:

• Volumetric drag.

• Frequency.

• Temperature, if the data depend on temperature.

• Value of the first field variable, if the data depend on field variables.

• Value of the second field variable.

• Etc.

The default value is an empty sequence.

返回:¶

An AcousticMedium object.

返回类型:¶

AcousticMedium

抛出:¶

RangeError –

BrittleCracking(table, temperatureDependency=0, dependencies=0, type=STRAIN)[源代码]¶

This method creates a BrittleCracking object.

备注

This function can be accessed by:

mdb.models[name].materials[name].BrittleCracking
session.odbs[name].materials[name].BrittleCracking

备注

Check BrittleCracking on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

type=STRAIN¶

A SymbolicConstant specifying the type of postcracking behavior. Possible values are STRAIN, DISPLACEMENT, and GFI. The default value is STRAIN.

返回:¶

A BrittleCracking object.

返回类型:¶

BrittleCracking

CapPlasticity(table, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a CapPlasticity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].CapPlasticity
session.odbs[name].materials[name].CapPlasticity

备注

Check CapPlasticity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A CapPlasticity object.

返回类型:¶

CapPlasticity

抛出:¶

RangeError –

CastIronPlasticity(table, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a CastIronPlasticity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].CastIronPlasticity
session.odbs[name].materials[name].CastIronPlasticity

备注

Check CastIronPlasticity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A CastIronPlasticity object.

返回类型:¶

CastIronPlasticity

抛出:¶

RangeError –

ClayPlasticity(

table,

intercept=None,

hardening=EXPONENTIAL,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a ClayPlasticity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].ClayPlasticity
session.odbs[name].materials[name].ClayPlasticity

备注

Check ClayPlasticity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

intercept=None¶

None or a Float specifying \(e_1\), the intercept of the virgin consolidation line with the void ratio axis in a plot of void ratio versus the logarithm of pressure stress. The default value is None.This argument is valid only if hardening = EXPONENTIAL.

hardening=EXPONENTIAL¶

A SymbolicConstant specifying the type of hardening/softening definition. Possible values are EXPONENTIAL and TABULAR. The default value is EXPONENTIAL.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A ClayPlasticity object.

返回类型:¶

ClayPlasticity

抛出:¶

RangeError –

Concrete(table, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a Concrete object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Concrete
session.odbs[name].materials[name].Concrete

备注

Check Concrete on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Concrete object.

返回类型:¶

Concrete

抛出:¶

RangeError –

ConcreteDamagedPlasticity(table, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a ConcreteDamagedPlasticity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].ConcreteDamagedPlasticity
session.odbs[name].materials[name].ConcreteDamagedPlasticity

备注

Check ConcreteDamagedPlasticity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A ConcreteDamagedPlasticity object.

返回类型:¶

ConcreteDamagedPlasticity

抛出:¶

RangeError –

Conductivity(table, type=ISOTROPIC, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a Conductivity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Conductivity
session.odbs[name].materials[name].Conductivity

备注

Check Conductivity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

type=ISOTROPIC¶

A SymbolicConstant specifying the type of conductivity. Possible values are ISOTROPIC, ORTHOTROPIC, and ANISOTROPIC. The default value is ISOTROPIC.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Conductivity object.

返回类型:¶

Conductivity

抛出:¶

RangeError –

Creep(table, law=STRAIN, temperatureDependency=0, dependencies=0, time=TOTAL)[源代码]¶

This method creates a Creep object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Creep
session.odbs[name].materials[name].Creep

备注

Check Creep on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

law=STRAIN¶

A SymbolicConstant specifying the strain-hardening law. Possible values are STRAIN, TIME, HYPERBOLIC_SINE, USER, ANAND, DARVEAUX, DOUBLE_POWER, POWER_LAW, and TIME_POWER_LAW. The default value is STRAIN.

Added in version 2020: The options ANAND, DARVEAUX, DOUBLE_POWER, POWER_LAW, and TIME_POWER_LAW were added.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

time=TOTAL¶

A SymbolicConstant specifying the time interval for relevant laws. Possible values are CREEP and TOTAL. The default value is TOTAL.

返回:¶

A Creep object.

返回类型:¶

Creep

抛出:¶

RangeError –

CrushableFoam(

table,

hardening=VOLUMETRIC,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a CrushableFoam object.

备注

This function can be accessed by:

mdb.models[name].materials[name].CrushableFoam
session.odbs[name].materials[name].CrushableFoam

备注

Check CrushableFoam on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

hardening=VOLUMETRIC¶

A SymbolicConstant specifying the type of hardening/softening definition. Possible values are VOLUMETRIC and ISOTROPIC. The default value is VOLUMETRIC.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A CrushableFoam object.

返回类型:¶

CrushableFoam

抛出:¶

RangeError –

Damping(alpha=0, beta=0, composite=0, structural=0)[源代码]¶

This method creates a Damping object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Damping
session.odbs[name].materials[name].Damping

参数:¶

alpha=0¶

A Float specifying the αRαR factor to create mass proportional damping in direct-integration and explicit dynamics. The default value is 0.0.

beta=0¶

A Float specifying the βRβR factor to create stiffness proportional damping in direct-integration and explicit dynamics. The default value is 0.0.

composite=0¶

A Float specifying the fraction of critical damping to be used with this material in calculating composite damping factors for the modes (for use in modal dynamics). The default value is 0.0.This argument applies only to Abaqus/Standard analyses.

structural=0¶

A Float specifying the structural factor to create material damping in direct-integration and explicit dynamics. The default value is 0.0.

返回:¶

A Damping object.

返回类型:¶

Damping

抛出:¶

RangeError –

DeformationPlasticity(table, temperatureDependency=0)[源代码]¶

This method creates a DeformationPlasticity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].DeformationPlasticity
session.odbs[name].materials[name].DeformationPlasticity

备注

Check DeformationPlasticity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

返回:¶

A DeformationPlasticity object.

返回类型:¶

DeformationPlasticity

抛出:¶

RangeError –

Density(

table,

temperatureDependency=0,

dependencies=0,

distributionType=UNIFORM,

fieldName='',

)[源代码]¶

This method creates a Density object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Density
session.odbs[name].materials[name].Density

备注

Check Density on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

distributionType=UNIFORM¶

A SymbolicConstant specifying how the density is distributed spatially. Possible values are UNIFORM, ANALYTICAL_FIELD, and DISCRETE_FIELD. The default value is UNIFORM.

fieldName=''¶

A String specifying the name of the AnalyticalField or DiscreteField object associated with this material option. The fieldName argument applies only when distributionType = ANALYTICAL_FIELD or distributionType = DISCRETE_FIELD. The default value is an empty string.

返回:¶

A Density object.

返回类型:¶

Density

抛出:¶

RangeError –

Depvar(deleteVar=0, n=0)[源代码]¶

This method creates a Depvar object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Depvar
session.odbs[name].materials[name].Depvar

备注

Check Depvar on help.3ds.com/2020.

参数:¶

deleteVar=0¶

An Int specifying the state variable number controlling the element deletion flag. The default value is 0.This argument applies only to Abaqus/Explicit analyses.

n=0¶

An Int specifying the number of solution-dependent state variables required at each integration point. The default value is 0.

返回:¶

A Depvar object.

返回类型:¶

Depvar

抛出:¶

RangeError –

Dielectric(

table,

type=ISOTROPIC,

frequencyDependency=0,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a Dielectric object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Dielectric
session.odbs[name].materials[name].Dielectric

备注

Check Dielectric on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

type=ISOTROPIC¶

A SymbolicConstant specifying the dielectric behavior. Possible values are ISOTROPIC, ORTHOTROPIC, and ANISOTROPIC. The default value is ISOTROPIC.

frequencyDependency=0¶

A Boolean specifying whether the data depend on frequency. The default value is OFF.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Dielectric object.

返回类型:¶

Dielectric

Diffusivity(

table,

type=ISOTROPIC,

law=GENERAL,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a Diffusivity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Diffusivity
session.odbs[name].materials[name].Diffusivity

备注

Check Diffusivity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

type=ISOTROPIC¶

A SymbolicConstant specifying the type of diffusivity. Possible values are ISOTROPIC, ORTHOTROPIC, and ANISOTROPIC. The default value is ISOTROPIC.

law=GENERAL¶

A SymbolicConstant specifying the diffusion behavior. Possible values are GENERAL and FICK. The default value is GENERAL.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Diffusivity object.

返回类型:¶

Diffusivity

抛出:¶

RangeError –

DruckerPrager(

table,

shearCriterion=LINEAR,

eccentricity=0,

testData=0,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a DruckerPrager object.

备注

This function can be accessed by:

mdb.models[name].materials[name].DruckerPrager
session.odbs[name].materials[name].DruckerPrager

备注

Check DruckerPrager on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

shearCriterion=LINEAR¶

A SymbolicConstant specifying the yield criterion. Possible values are LINEAR, HYPERBOLIC, and EXPONENTIAL. The default value is LINEAR.This argument applies only to Abaqus/Standard analyses. Only the linear Drucker-Prager model is available in Abaqus/Explicit analyses.

eccentricity=0¶

A Float specifying the flow potential eccentricity, \(\epsilon\), a small positive number that defines the rate at which the hyperbolic flow potential approaches its asymptote. The default value is 0.1.This argument applies only to Abaqus/Standard analyses.

testData=0¶

A Boolean specifying whether the material constants for the exponent model are to be computed by Abaqus/Standard from triaxial test data at different levels of confining pressure. The default value is OFF.This argument is valid only if shearCriterion = EXPONENTIAL.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A DruckerPrager object.

返回类型:¶

DruckerPrager

抛出:¶

RangeError –

DuctileDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].DuctileDamageInitiation
session.odbs[name].materials[name].DuctileDamageInitiation

备注

Check DuctileDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

Elastic(

table,

type=ISOTROPIC,

noCompression=0,

noTension=0,

temperatureDependency=0,

dependencies=0,

moduli=LONG_TERM,

)[源代码]¶

This method creates an Elastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Elastic
session.odbs[name].materials[name].Elastic

备注

Check Elastic on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

type=ISOTROPIC¶

A SymbolicConstant specifying the type of elasticity data provided. Possible values are:

• ISOTROPIC

• ORTHOTROPIC

• ANISOTROPIC

• ENGINEERING_CONSTANTS

• LAMINA

• TRACTION

• COUPLED_TRACTION

• SHORT_FIBER

• SHEAR

The default value is ISOTROPIC.

noCompression=0¶

A Boolean specifying whether compressive stress is allowed. The default value is OFF.

noTension=0¶

A Boolean specifying whether tensile stress is allowed. The default value is OFF.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

moduli=LONG_TERM¶

A SymbolicConstant specifying the time-dependence of the elastic material constants. Possible values are INSTANTANEOUS and LONG_TERM. The default value is LONG_TERM.

返回:¶

An Elastic object.

返回类型:¶

Elastic

抛出:¶

RangeError –

ElectricalConductivity(

table,

type=ISOTROPIC,

frequencyDependency=0,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates an ElectricalConductivity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].ElectricalConductivity
session.odbs[name].materials[name].ElectricalConductivity

备注

Check ElectricalConductivity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

type=ISOTROPIC¶

A SymbolicConstant specifying the type of electrical conductivity. Possible values are ISOTROPIC, ORTHOTROPIC, and ANISOTROPIC. The default value is ISOTROPIC.

frequencyDependency=0¶

A Boolean specifying whether the data depend on frequency. The default value is OFF.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

An ElectricalConductivity object.

返回类型:¶

ElectricalConductivity

抛出:¶

RangeError –

Eos(

type=IDEALGAS,

temperatureDependency=0,

dependencies=0,

detonationEnergy=0,

solidTable=(),

gasTable=(),

reactionTable=(),

gasSpecificTable=(),

table=(),

)[源代码]¶

This method creates an Eos object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Eos
session.odbs[name].materials[name].Eos

备注

Check Eos on help.3ds.com/2020.

参数:¶

type=IDEALGAS¶

A SymbolicConstant specifying the equation of state. Possible values are USUP, JWL, IDEALGAS, TABULAR, and IGNITIONANDGROWTH. The default value is IDEALGAS.

temperatureDependency=0¶

A Boolean specifying whether the data in gasSpecificTable depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies for the data in gasSpecificTable. The default value is 0.

detonationEnergy=0¶

A Float specifying the detonation energy text field. The default value is 0.0.

solidTable=()¶

A sequence of sequences of Floats specifying the following:

• \(A_{s}\).

• \(B_{s}\).

• \({\omega}_{s}\).

• \(R_{1s}\).

• \(R_{2s}\).

The default value is an empty sequence.

gasTable=()¶

A sequence of sequences of Floats specifying the following:

• \(A_{g}\).

• \(B_{g}\).

• \({\omega}_{g}\).

• \(R_{1g}\).

• \(R_{2g}\).

The default value is an empty sequence.

reactionTable=()¶

A sequence of sequences of Floats specifying the following:

• Initial Pressure, \(I\).

• Product co-volume, \(a\).

• Exponent on the unreacted fraction (ignition term), \(x\).

• First burn rate coefficient, \(G_{1}\)

• Exponent on the unreacted fraction (growth term), \(c\).

• Exponent on the reacted fraction (growth term), \(d\).

• Pressure exponent (growth term), \(y\).

• Second burn rate coefficient, \(G_{2}\).

• Exponent on the unreacted fraction (completion term), \(e\).

• Exponent on the reacted fraction (completion term), \(g\).

• Pressure exponent (completion term), \(z\).

• Initial reacted fraction, \({F^{max}}_{ig}\).

• Maximum reacted fraction for the growth term, \({F^{max}}_{G1}\).

• Minimum reacted fraction, \({F^{min}}_{G2}\).

The default value is an empty sequence.

gasSpecificTable=()¶

A sequence of sequences of Floats specifying the following:

• Specific Heat per unit mass.

• Temperature dependent data.

• Value of first field variable.

• Value of second field variable.

• Etc.

The default value is an empty sequence.

table=()¶

A sequence of sequences of Floats specifying the items described below. The default value is an empty sequence.

Expansion(

type=ISOTROPIC,

userSubroutine=0,

zero=0,

temperatureDependency=0,

dependencies=0,

table=(),

)[源代码]¶

This method creates an Expansion object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Expansion
session.odbs[name].materials[name].Expansion

备注

Check Expansion on help.3ds.com/2020.

参数:¶

type=ISOTROPIC¶

A SymbolicConstant specifying the type of expansion. Possible values are ISOTROPIC, ORTHOTROPIC, ANISOTROPIC, and SHORT_FIBER. The default value is ISOTROPIC.

userSubroutine=0¶

A Boolean specifying whether a user subroutine is used to define the increments of thermal strain. The default value is OFF.

zero=0¶

A Float specifying the value of :math:` heta_0` if the thermal expansion is temperature-dependent or field-variable-dependent. The default value is 0.0.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

table=()¶

A sequence of sequences of Floats specifying the items described below. The default value is an empty sequence.This argument is required only if type is not USER.

返回:¶

An Expansion object.

返回类型:¶

Expansion

抛出:¶

RangeError –

FldDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].FldDamageInitiation
session.odbs[name].materials[name].FldDamageInitiation

备注

Check FldDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

FlsdDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].FlsdDamageInitiation
session.odbs[name].materials[name].FlsdDamageInitiation

备注

Check FlsdDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

FluidLeakoff(

temperatureDependency=0,

dependencies=0,

type=COEFFICIENTS,

table=(),

)[源代码]¶

This method creates a FluidLeakoff object.

备注

This function can be accessed by:

mdb.models[name].materials[name].FluidLeakoff
session.odbs[name].materials[name].FluidLeakoff

备注

Check FluidLeakoff on help.3ds.com/2020.

参数:¶

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

type=COEFFICIENTS¶

A SymbolicConstant specifying the type of fluid leak-off. Possible values are COEFFICIENTS and USER. The default value is COEFFICIENTS.

table=()¶

A sequence of sequences of Floats specifying the items described below. The default value is an empty sequence.

返回:¶

A FluidLeakoff object.

返回类型:¶

FluidLeakoff

GapFlow(

table,

kmax=None,

temperatureDependency=0,

dependencies=0,

type=NEWTONIAN,

)[源代码]¶

This method creates a GapFlow object.

备注

This function can be accessed by:

mdb.models[name].materials[name].GapFlow
session.odbs[name].materials[name].GapFlow

备注

Check GapFlow on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

kmax=None¶

None or a Float specifying the maximum permeability value that should be used. If kmax = None, Abaqus assumes that the permeability is not bounded. This value is meaningful only when type = NEWTONIAN. The default value is None.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

type=NEWTONIAN¶

A SymbolicConstant specifying the type of gap flow. Possible values are NEWTONIAN, POWER_LAW, BINGHAM_PLASTIC, and HERSCHEL-BULKLEY. The default value is NEWTONIAN.

Added in version 2020: The options BINGHAM_PLASTIC and HERSCHEL-BULKLEY were added.

返回:¶

A GapFlow object.

返回类型:¶

GapFlow

GasketMembraneElastic(table, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a GasketMembraneElastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].GasketMembraneElastic
session.odbs[name].materials[name].GasketMembraneElastic

备注

Check GasketMembraneElastic on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A GasketMembraneElastic object.

返回类型:¶

GasketMembraneElastic

抛出:¶

RangeError –

GasketThicknessBehavior(

table,

temperatureDependency=0,

dependencies=0,

tensileStiffnessFactor=None,

type=ELASTIC_PLASTIC,

unloadingDependencies=0,

unloadingTemperatureDependency=0,

variableUnits=STRESS,

yieldOnset=0,

yieldOnsetMethod=RELATIVE_SLOPE_DROP,

unloadingTable=(),

)[源代码]¶

This method creates a GasketThicknessBehavior object.

备注

This function can be accessed by:

mdb.models[name].materials[name].GasketThicknessBehavior
session.odbs[name].materials[name].GasketThicknessBehavior

备注

Check GasketThicknessBehavior on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying loading data. The first sequence must contain only 0. At least two sequences must be specified if type = DAMAGE, and at least 3 sequences must be specified if type = ELASTIC_PLASTIC. The items in the table data are described below.

temperatureDependency=0¶

A Boolean specifying whether the loading data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies included in the definition of the loading data, in addition to temperature. The default value is 0.

tensileStiffnessFactor=None¶

A Float specifying the fraction of the initial compressive stiffness that defines the stiffness in tension. The default value is 10⁻³.

type=ELASTIC_PLASTIC¶

A SymbolicConstant specifying a damage elasticity model or an elastic-Plastic model for gasket thickness-direction behavior. Possible values are ELASTIC_PLASTIC and DAMAGE. The default value is ELASTIC_PLASTIC.

unloadingDependencies=0¶

An Int specifying the number of field variable dependencies included in the definition of the unloading data, in addition to temperature. The default value is 0.

unloadingTemperatureDependency=0¶

A Boolean specifying whether unloading data depends on temperature. The default value is OFF.

variableUnits=STRESS¶

A SymbolicConstant specifying the behavior in terms of units of force (or force in unit length) versus closure or pressure versus closure. Possible values are STRESS and FORCE. The default value is STRESS.

yieldOnset=0¶

A Float specifying the closure value at which the onset of yield occurs or the relative drop in slope on the loading curve that defines the onset of Plastic deformation (depending on the value of yieldOnsetMethod). The default value is 0.1.

yieldOnsetMethod=RELATIVE_SLOPE_DROP¶

A SymbolicConstant specifying the method used to determine yield onset. Possible values are RELATIVE_SLOPE_DROP and CLOSURE_VALUE. The default value is RELATIVE_SLOPE_DROP.

unloadingTable=()¶

A sequence of sequences of Floats specifying unloading data. The items in the table data are described below. The default value is an empty sequence.

返回:¶

A GasketThicknessBehavior object.

返回类型:¶

GasketThicknessBehavior

抛出:¶

RangeError –

GasketTransverseShearElastic(

table,

variableUnits=STRESS,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a GasketTransverseShearElastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].GasketTransverseShearElastic
session.odbs[name].materials[name].GasketTransverseShearElastic

备注

Check GasketTransverseShearElastic on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

variableUnits=STRESS¶

A SymbolicConstant specifying the unit system in which the transverse shear behavior will be defined. Possible values are STRESS and FORCE. The default value is STRESS.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A GasketTransverseShearElastic object.

返回类型:¶

GasketTransverseShearElastic

抛出:¶

RangeError –

Gel(table)[源代码]¶

This method creates a Gel object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Gel
session.odbs[name].materials[name].Gel

备注

Check Gel on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

返回:¶

A Gel object.

返回类型:¶

Gel

HashinDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].HashinDamageInitiation
session.odbs[name].materials[name].HashinDamageInitiation

备注

Check HashinDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

Hyperelastic(

table,

type=UNKNOWN,

moduliTimeScale=LONG_TERM,

temperatureDependency=0,

n=1,

beta=FITTED_VALUE,

testData=1,

compressible=0,

properties=0,

deviatoricResponse=UNIAXIAL,

volumetricResponse=DEFAULT,

poissonRatio=0,

materialType=ISOTROPIC,

anisotropicType=FUNG_ANISOTROPIC,

formulation=STRAIN,

behaviorType=INCOMPRESSIBLE,

dependencies=0,

localDirections=0,

)[源代码]¶

This method creates a Hyperelastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Hyperelastic
session.odbs[name].materials[name].Hyperelastic

备注

Check Hyperelastic on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below. This argument is valid only if testData = OFF.

type=UNKNOWN¶

A SymbolicConstant specifying the type of strain energy potential. Possible values are:ARRUDA_BOYCEMARLOWMOONEY_RIVLINNEO_HOOKEOGDENPOLYNOMIALREDUCED_POLYNOMIALUSERVAN_DER_WAALSYEOHUNKNOWNThe default value is UNKNOWN.

moduliTimeScale=LONG_TERM¶

A SymbolicConstant specifying the nature of the time response. Possible values are INSTANTANEOUS and LONG_TERM. The default value is LONG_TERM.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

n=1¶

An Int specifying the order of the strain energy potential. The default value is 1.If testData = ON and type = POLYNOMIAL, n can take only the values 1 or 2.If testData = ON and type = OGDEN or if testData = OFF for either type, 1 ≤n≤n≤ 6.If type = USER, this argument cannot be used.

beta=FITTED_VALUE¶

The SymbolicConstant FITTED_VALUE or a Float specifying the invariant mixture parameter. This argument is valid only if testData = ON and type = VAN_DER_WAALS. The default value is FITTED_VALUE.

testData=1¶

A Boolean specifying whether test data are supplied. The default value is ON.

compressible=0¶

A Boolean specifying whether the hyperelastic material is compressible. This parameter is applicable only to user-defined hyperelastic materials. The default value is OFF.

properties=0¶

An Int specifying the number of property values needed as data for the user-defined hyperelastic material. The default value is 0.

deviatoricResponse=UNIAXIAL¶

A SymbolicConstant specifying which test data to use. Possible values are UNIAXIAL, BIAXIAL, and PLANAR. The default value is UNIAXIAL.

volumetricResponse=DEFAULT¶

A SymbolicConstant specifying the volumetric response. Possible values are DEFAULT, VOLUMETRIC_DATA, POISSON_RATIO, and LATERAL_NOMINAL_STRAIN. The default value is DEFAULT.

poissonRatio=0¶

A Float specifying the poisson ratio. This argument is valid only if volumetricResponse = POISSON_RATIO. The default value is 0.0.

materialType=ISOTROPIC¶

A SymbolicConstant specifying the type of material. Possible values are ISOTROPIC and ANISOTROPIC. The default value is ISOTROPIC.

anisotropicType=FUNG_ANISOTROPIC¶

A SymbolicConstant specifying the type of strain energy potential. Possible values are FUNG_ANISOTROPIC, FUNG_ORTHOTROPIC, HOLZAPFEL, and USER_DEFINED. The default value is FUNG_ANISOTROPIC.

formulation=STRAIN¶

A SymbolicConstant specifying the type of formulation. Possible values are STRAIN and INVARIANT. The default value is STRAIN.

behaviorType=INCOMPRESSIBLE¶

A SymbolicConstant specifying the type of anisotropic hyperelastic material behavior. Possible values are INCOMPRESSIBLE and COMPRESSIBLE. The default value is INCOMPRESSIBLE.

dependencies=0¶

An Int specifying the number of field variable dependencies for the data in*volumetricTable* . The default value is 0.

localDirections=0¶

An Int specifying the number of local directions for the data in*volumetricTable* . The default value is 0.

返回:¶

A Hyperelastic object.

返回类型:¶

Hyperelastic

抛出:¶

• InvalidNameError –

• RangeError –

Hyperfoam(

testData=0,

poisson=None,

n=1,

temperatureDependency=0,

moduli=LONG_TERM,

table=(),

)[源代码]¶

This method creates a Hyperfoam object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Hyperfoam
session.odbs[name].materials[name].Hyperfoam

备注

Check Hyperfoam on help.3ds.com/2020.

参数:¶

testData=0¶

A Boolean specifying whether test data are supplied. The default value is OFF.

poisson=None¶

None or a Float specifying the effective Poisson’s ratio, νν, of the material. This argument is valid only when testData = ON. The default value is None.

n=1¶

An Int specifying the order of the strain energy potential. Possible values are 1 ≤n≤n≤ 6. The default value is 1.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

moduli=LONG_TERM¶

A SymbolicConstant specifying the time-dependence of the material constants. Possible values are INSTANTANEOUS and LONG_TERM. The default value is LONG_TERM.

table=()¶

A sequence of sequences of Floats specifying the items described below. This argument is valid only when testData = OFF. The default value is an empty sequence.

返回:¶

A Hyperfoam object.

返回类型:¶

Hyperfoam

抛出:¶

RangeError –

Hypoelastic(table, user=0)[源代码]¶

This method creates a Hypoelastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Hypoelastic
session.odbs[name].materials[name].Hypoelastic

备注

Check Hypoelastic on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

user=0¶

A Boolean specifying that hypoelasticity is defined by user subroutine UHYPEL. The default value is OFF.

返回:¶

A Hypoelastic object.

返回类型:¶

Hypoelastic

InelasticHeatFraction(fraction=0)[源代码]¶

This method creates an InelasticHeatFraction object.

备注

This function can be accessed by:

mdb.models[name].materials[name].InelasticHeatFraction
session.odbs[name].materials[name].InelasticHeatFraction

备注

Check InelasticHeatFraction on help.3ds.com/2020.

参数:¶

fraction=0¶

A Float specifying the fraction of inelastic dissipation rate that appears as a heat flux per unit volume. The fraction may include a unit conversion factor if required. Possible values are 0.0 ≤ fraction ≤ 1.0. The default value is 0.9.

返回:¶

An InelasticHeatFraction object.

返回类型:¶

InelasticHeatFraction

抛出:¶

RangeError –

JohnsonCookDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].JohnsonCookDamageInitiation
session.odbs[name].materials[name].JohnsonCookDamageInitiation

备注

Check JohnsonCookDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

JouleHeatFraction(fraction=1)[源代码]¶

This method creates a JouleHeatFraction object.

备注

This function can be accessed by:

mdb.models[name].materials[name].JouleHeatFraction
session.odbs[name].materials[name].JouleHeatFraction

备注

Check JouleHeatFraction on help.3ds.com/2020.

参数:¶

fraction=1¶

A Float specifying the fraction of electrical energy released as heat, including any unit conversion factor. The default value is 1.0.

返回:¶

A JouleHeatFraction object.

返回类型:¶

JouleHeatFraction

抛出:¶

RangeError –

LatentHeat(table)[源代码]¶

This method creates a LatentHeat object.

备注

This function can be accessed by:

mdb.models[name].materials[name].LatentHeat
session.odbs[name].materials[name].LatentHeat

备注

Check LatentHeat on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

返回:¶

A LatentHeat object.

返回类型:¶

LatentHeat

抛出:¶

RangeError –

LowDensityFoam(

elementRemoval=0,

maxAllowablePrincipalStress=None,

extrapolateStressStrainCurve=0,

strainRateType=VOLUMETRIC,

mu0=None,

mu1=0,

alpha=2,

)[源代码]¶

This method creates a LowDensityFoam object.

备注

This function can be accessed by:

mdb.models[name].materials[name].LowDensityFoam
session.odbs[name].materials[name].LowDensityFoam

备注

Check LowDensityFoam on help.3ds.com/2020.

参数:¶

elementRemoval=0¶

A Boolean specifying whether elements are removed if exceeding maximum principal tensile stress. This argument is valid only when maxAllowablePrincipalStress is defined. The default value is OFF.

maxAllowablePrincipalStress=None¶

None or a Float specifying the maximum allowable principal tensile stress. The default value is None.

extrapolateStressStrainCurve=0¶

A Boolean specifying whether the stress-strain curve is extrapolated if exceeding maximum strain rate. The default value is OFF.

strainRateType=VOLUMETRIC¶

A SymbolicConstant specifying strain rate measure used for constitutive calculations. Possible values are PRINCIPAL and VOLUMETRIC. The default value is VOLUMETRIC.

mu0=None¶

A Float specifying the relaxation coefficient μ0. The default value is 10⁻⁴.

mu1=0¶

A Float specifying the relaxation coefficient μ1. The default value is 0.5x10⁻².

alpha=2¶

A Float specifying the relaxation coefficient α. The default value is 2.0.

返回:¶

A LowDensityFoam object.

返回类型:¶

LowDensityFoam

抛出:¶

RangeError –

MagneticPermeability(

table,

table2,

table3,

type=ISOTROPIC,

frequencyDependency=0,

temperatureDependency=0,

dependencies=0,

nonlinearBH=0,

)[源代码]¶

This method creates a MagneticPermeability object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MagneticPermeability
session.odbs[name].materials[name].MagneticPermeability

备注

Check MagneticPermeability on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below in “Table data.” If type = ORTHOTROPIC and nonlinearBH=ON, the data specified in the table is for the first direction and table2 and table3 must be specified.

table2¶

A sequence of sequences of Floats specifying the items described below in “Table data” in the second direction. table2 must be specified only if type = ORTHOTROPIC and nonlinearBH=ON.

table3¶

A sequence of sequences of Floats specifying the items described below in “Table data” in the third direction. table3 must be specified only if type = ORTHOTROPIC and nonlinearBH=ON.

type=ISOTROPIC¶

A SymbolicConstant specifying the type of magnetic permeability. Possible values are ISOTROPIC, ORTHOTROPIC, and ANISOTROPIC. The default value is ISOTROPIC.

frequencyDependency=0¶

A Boolean specifying whether the data depend on frequency. The default value is OFF.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

nonlinearBH=0¶

A Boolean specifying whether the magnetic behavior is nonlinear and available in tabular form of magnetic flux density versus magnetic field values. The default value is OFF.

返回:¶

A MagneticPermeability object.

返回类型:¶

MagneticPermeability

抛出:¶

RangeError –

MaxeDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

position=CENTROID,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MaxeDamageInitiation
session.odbs[name].materials[name].MaxeDamageInitiation

备注

Check MaxeDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

position=CENTROID¶

An SymbolicConstant specifying the damage initiation position. Possible values are CENTROID, CRACKTIP and COMBINED. The default value is CENTROID.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

MaxpeDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

position=CENTROID,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MaxpeDamageInitiation
session.odbs[name].materials[name].MaxpeDamageInitiation

备注

Check MaxpeDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

position=CENTROID¶

An SymbolicConstant specifying the damage initiation position. Possible values are CENTROID, CRACKTIP and COMBINED. The default value is CENTROID.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

MaxpsDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

position=CENTROID,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MaxpsDamageInitiation
session.odbs[name].materials[name].MaxpsDamageInitiation

备注

Check MaxpsDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

position=CENTROID¶

An SymbolicConstant specifying the damage initiation position. Possible values are CENTROID, CRACKTIP and COMBINED. The default value is CENTROID.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

MaxsDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

position=CENTROID,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MaxsDamageInitiation
session.odbs[name].materials[name].MaxsDamageInitiation

备注

Check MaxsDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

position=CENTROID¶

An SymbolicConstant specifying the damage initiation position. Possible values are CENTROID, CRACKTIP and COMBINED. The default value is CENTROID.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

MeanFieldHomogenization(

angleSubdivision=None,

formulation=MT,

isotropization=ALLISO,

uniformMatrixStrain=NO,

)[源代码]¶

This method creates a MeanFieldHomogenization object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MeanFieldHomogenization
session.odbs[name].materials[name].MeanFieldHomogenization

Added in version 2018: The MeanFieldHomogenization method was added.

备注

Check MeanFieldHomogenization on help.3ds.com/2020.

参数:¶

angleSubdivision=None¶

An Int specifying the number of angle increments used for the discretization of the orientation space.

formulation=MT¶

A SymbolicConstant specifying the type of homogenization model. Possible values are MT, REUSS, VOIGT, INVERSED_MT, BALANCED, and UNSPECIFIED. The default value is MT.

isotropization=ALLISO¶

A SymbolicConstant specifying the type of isotropization method. Possible values are ALLISO, EISO, and PISO. The default value is ALLISO.

uniformMatrixStrain=NO¶

A SymbolicConstant specifying whether the average strain in the matrix is uniform across all pseudo-grains. Possible values are NO and YES. The default value is NO.

返回:¶

A MeanFieldHomogenization object.

抛出:¶

RangeError –

MkDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MkDamageInitiation
session.odbs[name].materials[name].MkDamageInitiation

备注

Check MkDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

MohrCoulombPlasticity(

table,

deviatoricEccentricity=None,

meridionalEccentricity=0,

temperatureDependency=0,

dependencies=0,

useTensionCutoff=0,

)[源代码]¶

This method creates a MohrCoulombPlasticity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MohrCoulombPlasticity
session.odbs[name].materials[name].MohrCoulombPlasticity

备注

Check MohrCoulombPlasticity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

deviatoricEccentricity=None¶

None or a Float specifying the flow potential eccentricity in the deviatoric plane, \(e\); \(1 / 2 \leq e \leq 1.0\). If deviatoricEccentricity = None, Abaqus calculates the value using the specified Mohr-Coulomb angle of friction. The default value is None.

meridionalEccentricity=0¶

A Float specifying the flow potential eccentricity in the meridional plane, ϵϵ. The default value is 0.1.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

useTensionCutoff=0¶

A Boolean specifying whether tension cutoff specification is needed. The default value is OFF.

返回:¶

A MohrCoulombPlasticity object.

返回类型:¶

MohrCoulombPlasticity

抛出:¶

RangeError –

MoistureSwelling(table)[源代码]¶

This method creates a MoistureSwelling object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MoistureSwelling
session.odbs[name].materials[name].MoistureSwelling

备注

Check MoistureSwelling on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

返回:¶

A MoistureSwelling object.

返回类型:¶

MoistureSwelling

MsfldDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].MsfldDamageInitiation
session.odbs[name].materials[name].MsfldDamageInitiation

备注

Check MsfldDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

Permeability(

specificWeight,

inertialDragCoefficient,

table,

type=ISOTROPIC,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a Permeability object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Permeability
session.odbs[name].materials[name].Permeability

备注

Check Permeability on help.3ds.com/2020.

参数:¶

specificWeight¶

A Float specifying the specific weight of the wetting liquid, \(\gamma_w\).

inertialDragCoefficient¶

A Float specifying The inertial drag coefficient of the wetting liquid, \(\gamma_w\).

table¶

A sequence of sequences of Floats specifying the items described below.

type=ISOTROPIC¶

A SymbolicConstant specifying the type of permeability. Possible values are ISOTROPIC, ORTHOTROPIC, and ANISOTROPIC. The default value is ISOTROPIC.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Permeability object.

返回类型:¶

Permeability

抛出:¶

RangeError –

Piezoelectric(table, type=STRESS, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a Piezoelectric object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Piezoelectric
session.odbs[name].materials[name].Piezoelectric

备注

Check Piezoelectric on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

type=STRESS¶

A SymbolicConstant specifying the type of material coefficients for the piezoelectric property. Possible values are STRAIN and STRESS. The default value is STRESS.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Piezoelectric object.

返回类型:¶

Piezoelectric

Plastic(

table,

hardening=ISOTROPIC,

rate=0,

dataType=HALF_CYCLE,

strainRangeDependency=0,

numBackstresses=1,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a Plastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Plastic
session.odbs[name].materials[name].Plastic

备注

Check Plastic on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

hardening=ISOTROPIC¶

A SymbolicConstant specifying the type of hardening. Possible values are ISOTROPIC, KINEMATIC, COMBINED, JOHNSON_COOK, and USER. The default value is ISOTROPIC.

rate=0¶

A Boolean specifying whether the data depend on rate. The default value is OFF.

dataType=HALF_CYCLE¶

A SymbolicConstant specifying the type of combined hardening. This argument is only valid if hardening = COMBINED. Possible values are HALF_CYCLE, PARAMETERS, and STABILIZED. The default value is HALF_CYCLE.

strainRangeDependency=0¶

A Boolean specifying whether the data depend on strain range. This argument is only valid if hardening = COMBINED and dataType = STABILIZED. The default value is OFF.

numBackstresses=1¶

An Int specifying the number of backstresses. This argument is only valid if hardening = COMBINED. The default value is 1.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Plastic object.

返回类型:¶

Plastic

抛出:¶

RangeError –

PoreFluidExpansion(table, zero=0, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a PoreFluidExpansion object.

备注

This function can be accessed by:

mdb.models[name].materials[name].PoreFluidExpansion
session.odbs[name].materials[name].PoreFluidExpansion

备注

Check PoreFluidExpansion on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

zero=0¶

A Float specifying the value of θ0. The default value is 0.0.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A PoreFluidExpansion object.

返回类型:¶

PoreFluidExpansion

抛出:¶

RangeError –

PorousBulkModuli(table, temperatureDependency=0)[源代码]¶

This method creates a PorousBulkModuli object.

备注

This function can be accessed by:

mdb.models[name].materials[name].PorousBulkModuli
session.odbs[name].materials[name].PorousBulkModuli

备注

Check PorousBulkModuli on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

返回:¶

A PorousBulkModuli object.

返回类型:¶

PorousBulkModuli

PorousElastic(table, shear=POISSON, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a PorousElastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].PorousElastic
session.odbs[name].materials[name].PorousElastic

备注

Check PorousElastic on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

shear=POISSON¶

A SymbolicConstant specifying the shear definition form. Possible values are G and POISSON. The default value is POISSON.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A PorousElastic object.

返回类型:¶

PorousElastic

抛出:¶

RangeError –

PorousMetalPlasticity(

table,

relativeDensity=None,

temperatureDependency=0,

dependencies=0,

)[源代码]¶

This method creates a PorousMetalPlasticity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].PorousMetalPlasticity
session.odbs[name].materials[name].PorousMetalPlasticity

备注

Check PorousMetalPlasticity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

relativeDensity=None¶

None or a Float specifying the initial relative density of the material, r0. The default value is None.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A PorousMetalPlasticity object.

返回类型:¶

PorousMetalPlasticity

抛出:¶

RangeError –

QuadeDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

position=CENTROID,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].QuadeDamageInitiation
session.odbs[name].materials[name].QuadeDamageInitiation

备注

Check QuadeDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

position=CENTROID¶

An SymbolicConstant specifying the damage initiation position. Possible values are CENTROID, CRACKTIP and COMBINED. The default value is CENTROID.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

QuadsDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

position=CENTROID,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].QuadsDamageInitiation
session.odbs[name].materials[name].QuadsDamageInitiation

备注

Check QuadsDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

position=CENTROID¶

An SymbolicConstant specifying the damage initiation position. Possible values are CENTROID, CRACKTIP and COMBINED. The default value is CENTROID.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

Regularization(rtol=0, strainRateRegularization=LOGARITHMIC)[源代码]¶

This method creates a Regularization object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Regularization
session.odbs[name].materials[name].Regularization

备注

Check Regularization on help.3ds.com/2020.

参数:¶

rtol=0¶

A Float specifying the tolerance to be used for regularizing material data. The default value is 0.03.

strainRateRegularization=LOGARITHMIC¶

A SymbolicConstant specifying the form of regularization of strain-rate-dependent material data. Possible values are LOGARITHMIC and LINEAR. The default value is LOGARITHMIC.

返回:¶

A Regularization object.

返回类型:¶

Regularization

抛出:¶

RangeError –

ShearDamageInitiation(

table,

definition=MSFLD,

feq=10,

fnn=10,

fnt=10,

frequency=1,

ks=0,

numberImperfections=4,

temperatureDependency=0,

dependencies=0,

alpha=0,

omega=1,

tolerance=0,

direction=NMORI,

)[源代码]¶

This method creates A DamageInitiation object.

备注

This function can be accessed by:

mdb.models[name].materials[name].ShearDamageInitiation
session.odbs[name].materials[name].ShearDamageInitiation

备注

Check ShearDamageInitiation on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described in the “Table data” section.

definition=MSFLD¶

A SymbolicConstant specifying the damage initiation definition. Possible values are FLD and MSFLD. The default value is MSFLD.

feq=10¶

A Float specifying the critical value of the deformation severity index for equivalent Plastic strains. The default value is 10.0.

fnn=10¶

A Float specifying the critical value of the deformation severity index for strains normal to the groove direction. The default value is 10.0.

fnt=10¶

A Float specifying the critical value of the deformation severity index for shear strains. The default value is 10.0.

frequency=1¶

An Int specifying the frequency, in increments, at which the Marciniak-Kuczynski analysis is going to be performed. The default value is 1.

ks=0¶

A Float specifying the value of Ks. The default value is 0.0.

numberImperfections=4¶

An Int specifying the number of imperfections to be considered for the evaluation of the Marciniak-Kuczynski analysis. These imperfections are assumed to be equally spaced in the angular direction. The default value is 4.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

alpha=0¶

A Float specifying the value of the coefficient that will multiply the shear contribution to the Hashin’s fiber initiation criterion. The default value is 0.0.

omega=1¶

A Float specifying the factor used for filtering the ratio of principal strain rates used for the evaluation of the MSFLD damage initiation criterion. The default value is 1.0.

tolerance=0¶

A Float specifying the tolerance within which the damage initiation criterion must be satisfied. The default value is 0.05.

direction=NMORI¶

A SymbolicConstant specifying the damage initiation direction. Possible values are NMORI and TMORI. The default value is NMORI.

返回:¶

A DamageInitiation object.

返回类型:¶

DamageInitiation

抛出:¶

RangeError –

Solubility(table, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a Solubility object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Solubility
session.odbs[name].materials[name].Solubility

备注

Check Solubility on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Solubility object.

返回类型:¶

Solubility

抛出:¶

RangeError –

Sorption(

absorptionTable,

lawAbsorption=TABULAR,

exsorption=0,

lawExsorption=TABULAR,

scanning=0,

exsorptionTable=(),

)[源代码]¶

This method creates a Sorption object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Sorption
session.odbs[name].materials[name].Sorption

备注

Check Sorption on help.3ds.com/2020.

参数:¶

absorptionTable¶

A sequence of sequences of Floats specifying the items described below.

lawAbsorption=TABULAR¶

A SymbolicConstant specifying absorption behavior. Possible values are LOG and TABULAR. The default value is TABULAR.

exsorption=0¶

A Boolean specifying whether the exsorption data is specified. The default value is OFF.

lawExsorption=TABULAR¶

A SymbolicConstant specifying exsorption behavior. Possible values are LOG and TABULAR. The default value is TABULAR.

scanning=0¶

A Float specifying the slope of the scanning line, \(\left.\left(d u_{w} / d s\right)\right|_{s}\). This slope must be positive and larger than the slope of the absorption or exsorption behaviors. The default value is 0.0.

exsorptionTable=()¶

A sequence of sequences of Floats specifying the items described below. The default value is an empty sequence.

返回:¶

A Sorption object.

返回类型:¶

Sorption

抛出:¶

RangeError –

SpecificHeat(table, law=CONSTANTVOLUME, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a SpecificHeat object.

备注

This function can be accessed by:

mdb.models[name].materials[name].SpecificHeat
session.odbs[name].materials[name].SpecificHeat

备注

Check SpecificHeat on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

law=CONSTANTVOLUME¶

A SymbolicConstant specifying the specific heat behavior. Possible values are CONSTANTVOLUME and CONSTANTPRESSURE. The default value is CONSTANTVOLUME.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A SpecificHeat object.

返回类型:¶

SpecificHeat

抛出:¶

RangeError –

Swelling(table, law=INPUT, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a Swelling object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Swelling
session.odbs[name].materials[name].Swelling

备注

Check Swelling on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.This argument is valid only when law = INPUT.

law=INPUT¶

A SymbolicConstant specifying the type of data defining the swelling behavior. Possible values are INPUT and USER. The default value is INPUT.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Swelling object.

返回类型:¶

Swelling

抛出:¶

RangeError –

UserMaterial(

type=MECHANICAL,

unsymm=0,

mechanicalConstants=(),

thermalConstants=(),

effmod=0,

hybridFormulation=INCREMENTAL,

)[源代码]¶

This method creates a UserMaterial object.

备注

This function can be accessed by:

mdb.models[name].materials[name].UserMaterial
session.odbs[name].materials[name].UserMaterial

备注

Check UserMaterial on help.3ds.com/2020.

参数:¶

type=MECHANICAL¶

A SymbolicConstant specifying the type of material behavior defined by the command. Possible values are MECHANICAL, THERMAL, and THERMOMECHANICAL. The default value is MECHANICAL.

unsymm=0¶

A Boolean specifying if the material stiffness matrix, ∂Δσ/∂Δε, is not symmetric or, when a thermal constitutive model is used, if ∂f/∂(∂θ/∂x) is not symmetric. The default value is OFF. This argument is valid only for an Abaqus/Standard analysis.

mechanicalConstants=()¶

A sequence of Floats specifying the mechanical constants of the material. This argument is valid only when type = MECHANICAL or THERMOMECHANICAL. The default value is an empty sequence.

thermalConstants=()¶

A sequence of Floats specifying the thermal constants of the material. This argument is valid only when type = THERMAL or THERMOMECHANICAL. The default value is an empty sequence.

effmod=0¶

A Boolean specifying if effective bulk modulus and shear modulus are returned by user subroutine VUMAT. The default value is OFF. This argument is valid only in an Abaqus/Explicit analysis.

hybridFormulation=INCREMENTAL¶

A SymbolicConstant to specify the formulation of the hybrid element with user subroutine UMAT. Possible values are TOTAL, INCREMENTAL, and INCOMPRESSIBLE. The default value is INCREMENTAL. This argument is valid only in an Abaqus/Standard analysis.

返回:¶

A UserMaterial object.

返回类型:¶

UserMaterial

抛出:¶

RangeError –

UserOutputVariables(n=0)[源代码]¶

This method creates a UserOutputVariables object.

备注

This function can be accessed by:

mdb.models[name].materials[name].UserOutputVariables
session.odbs[name].materials[name].UserOutputVariables

备注

Check UserOutputVariables on help.3ds.com/2020.

参数:¶

n=0¶

An Int specifying the number of user-defined variables required at each material point. The default value is 0.

返回:¶

A UserOutputVariables object.

返回类型:¶

UserOutputVariables

抛出:¶

RangeError –

Viscoelastic(

domain,

table,

frequency=FORMULA,

type=ISOTROPIC,

preload=NONE,

time=PRONY,

errtol=0,

nmax=13,

volumetricTable=(),

)[源代码]¶

This method creates a Viscoelastic object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Viscoelastic
session.odbs[name].materials[name].Viscoelastic

备注

Check Viscoelastic on help.3ds.com/2020.

参数:¶

domain¶

A SymbolicConstant specifying the domain definition. Possible values are: - FREQUENCY, specifying a frequency domain. This domain is only available for an Abaqus/Standard analysis. - TIME, specifying a time domain.

table¶

A sequence of sequences of Floats specifying the items described below.

frequency=FORMULA¶

A SymbolicConstant specifying the frequency domain definition. This argument is required only when domain = FREQUENCY. Possible values are FORMULA, TABULAR, PRONY, CREEP_TEST_DATA, and RELAXATION_TEST_DATA. The default value is FORMULA.

type=ISOTROPIC¶

A SymbolicConstant specifying the type. This argument is required only when domain = FREQUENCY and frequency = TABULAR. Possible values are ISOTROPIC and TRACTION. The default value is ISOTROPIC.

preload=NONE¶

A SymbolicConstant specifying the preload. This argument is required only when domain = FREQUENCY and frequency = TABULAR. Possible values are NONE, UNIAXIAL, VOLUMETRIC, and UNIAXIAL_VOLUMETRIC. The default value is NONE.

time=PRONY¶

A SymbolicConstant specifying the time domain definition. This argument is required only when domain = TIME. Possible values are PRONY, CREEP_TEST_DATA, RELAXATION_TEST_DATA, and FREQUENCY_DATA. The default value is PRONY.

errtol=0¶

A Float specifying the allowable average root-mean-square error of the data points in the least-squares fit. The Float values correspond to percentages; for example, 0.01 is 1%. The default value is 0.01.This argument is valid only when time = CREEP_TEST_DATA, RELAXATION_TEST_DATA or FREQUENCY_DATA; or only when frequency = CREEP_TEST_DATA or RELAXATION_TEST_DATA.

nmax=13¶

An Int specifying the maximum number of terms NN in the Prony series. The maximum value is 13. The default value is 13.This argument is valid only when time = CREEP_TEST_DATA, RELAXATION_TEST_DATA or FREQUENCY_DATA; or only when frequency = CREEP_TEST_DATA or RELAXATION_TEST_DATA.

volumetricTable=()¶

A sequence of sequences of Floats specifying the items described below. The default value is an empty sequence.

返回:¶

A Viscoelastic object.

返回类型:¶

Viscoelastic

抛出:¶

RangeError –

Viscosity(table, type=NEWTONIAN, temperatureDependency=0, dependencies=0)[源代码]¶

This method creates a Viscosity object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Viscosity
session.odbs[name].materials[name].Viscosity

备注

Check Viscosity on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

type=NEWTONIAN¶

A SymbolicConstant specifying the type of viscosity. The default value is NEWTONIAN.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

返回:¶

A Viscosity object.

返回类型:¶

Viscosity

抛出:¶

RangeError –

Viscous(table, law=STRAIN, temperatureDependency=0, dependencies=0, time=TOTAL)[源代码]¶

This method creates a Viscous object.

备注

This function can be accessed by:

mdb.models[name].materials[name].Viscous
session.odbs[name].materials[name].Viscous

备注

Check Viscous on help.3ds.com/2020.

参数:¶

table¶

A sequence of sequences of Floats specifying the items described below.

law=STRAIN¶

A SymbolicConstant specifying the creep law. Possible values are STRAIN, TIME, USER, ANAND, DARVEAUX, DOUBLE_POWER, POWER_LAW, and TIME_POWER_LAW. The default value is STRAIN.

Added in version 2020: The options ANAND, DARVEAUX, DOUBLE_POWER, POWER_LAW, and TIME_POWER_LAW were added.

temperatureDependency=0¶

A Boolean specifying whether the data depend on temperature. The default value is OFF.

dependencies=0¶

An Int specifying the number of field variable dependencies. The default value is 0.

time=TOTAL¶

A SymbolicConstant specifying the time interval for relevant laws. Possible values are CREEP and TOTAL. The default value is TOTAL.

返回:¶

A Viscous object.

返回类型:¶

Viscous