Hyperelastic(...)
This method creates a Hyperelastic object.
Path
mdb.models[name].materials[name].Hyperelastic session.odbs[name].materials[name].Hyperelastic
Required arguments
- table
A sequence of sequences of Floats specifying the items described below. This argument is valid only if testData=OFF.
Optional arguments
- type
A SymbolicConstant specifying the type of strain energy potential. Possible values are:
ARRUDA_BOYCE
MARLOW
MOONEY_RIVLIN
NEO_HOOKE
OGDEN
POLYNOMIAL
REDUCED_POLYNOMIAL
USER
VAN_DER_WAALS
YEOH
UNKNOWN
-
VALANIS_LANDEL
The default value is UNKNOWN.
- moduliTimeScale
A SymbolicConstant specifying the nature of the time response. Possible values are INSTANTANEOUS and LONG_TERM. The default value is LONG_TERM.
- temperatureDependency
A Boolean specifying whether the data depend on temperature. The default value is OFF.
- n
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 6.
If type=USER, this argument cannot be used.
- beta
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
A Boolean specifying whether test data are supplied. The default value is ON.
- compressible
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
An Int specifying the number of property values needed as data for the user-defined hyperelastic material. The default value is 0.
- deviatoricResponse
A SymbolicConstant specifying which test data to use. Possible values are UNIAXIAL, BIAXIAL, and PLANAR. The default value is UNIAXIAL.
- volumetricResponse
A SymbolicConstant specifying the volumetric response. Possible values are DEFAULT, VOLUMETRIC_DATA, POISSON_RATIO, and LATERAL_NOMINAL_STRAIN. The default value is DEFAULT.
- poissonRatio
A Float specifying the Poisson's ratio. This argument is valid only if volumetricResponse=POISSON_RATIO. The default value is 0.0.
- materialType
A SymbolicConstant specifying the type of material. Possible values are ISOTROPIC and ANISOTROPIC. The default value is ISOTROPIC.
- anisotropicType
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
A SymbolicConstant specifying the type of formulation. Possible values are STRAIN and INVARIANT. The default value is STRAIN.
- behaviorType
A SymbolicConstant specifying the type of anisotropic hyperelastic material behavior. Possible values are INCOMPRESSIBLE and COMPRESSIBLE. The default value is INCOMPRESSIBLE.
- dependencies
An Int specifying the number of field variable dependencies for the data involumetricTable. The default value is 0.
- localDirections
An Int specifying the number of local directions for the data involumetricTable. The default value is 0.
Table data
If type=ARRUDA_BOYCE, the table data specify the following:
.
.
.
Temperature, if the data depend on temperature.
If type=MOONEY_RIVLIN, the table data specify the following:
.
.
.
Temperature, if the data depend on temperature.
If type=NEO_HOOKE, the table data specify the following:
.
.
Temperature, if the data depend on temperature.
If type=OGDEN, the table data specify the following for values of :
and for from 1 to .
coefficients .
Temperature, if the data depend on temperature. Temperature dependence is not allowed for 4 6 in an Abaqus/Explicit analysis.
If type=POLYNOMIAL, the table data specify the following for values of :
for each value of from to with decreasing from to zero and increasing from zero to .
coefficients .
Temperature, if the data depend on temperature. Temperature dependence is not allowed for 3 6 in an Abaqus/Explicit analysis.
If type=REDUCED_POLYNOMIAL, the table data specify the following for values of :
for from 1 to .
coefficients .
Temperature, if the data depend on temperature. Temperature dependence is not allowed for 4 6 in an Abaqus/Explicit analysis.
If type=VAN_DER_WAALS, the table data specify the following:
.
.
.
.
.
Temperature, if the data depend on temperature.
If type=YEOH, the table data specify the following:
.
.
.
.
.
.
Temperature, if the data depend on temperature. Temperature dependence is not allowed in an Abaqus/Explicit analysis.
The None object is the default value if testData=ON.
Return value
A Hyperelastic object.
Exceptions
InvalidNameError and RangeError.