- arrhenius_coefficientThe arrhenius coefficient
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:The arrhenius coefficient
- epsA small number to help this perfect plasticity model to converge.
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:A small number to help this perfect plasticity model to converge.
- phase_fieldName of the phase-field (damage) variable
C++ Type:std::vector<VariableName>
Unit:(no unit assumed)
Controllable:No
Description:Name of the phase-field (damage) variable
- reference_stressThe reference stress $\sigma_0$
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:The reference stress $\sigma_0$
- temperatureCouples with temperature to compute heat generation/loss due to hardening/softening.
C++ Type:std::vector<VariableName>
Unit:(no unit assumed)
Controllable:No
Description:Couples with temperature to compute heat generation/loss due to hardening/softening.
ArrheniusLawHardening
Plastic hardening following a temperature dependent Arrhenius law.
Overview
This plastic hardening law follows from the following plastic energy:
where is the degradation function, is the reference stress, and is a coefficient following the Arrhenius law. A linear hardening term, i.e. is added to optional add linear hardening.
Example Input File Syntax
Input Parameters
- base_nameOptional parameter that allows the user to define multiple mechanics material systems on the same block, i.e. for multiple phases
C++ Type:std::string
Unit:(no unit assumed)
Controllable:No
Description:Optional parameter that allows the user to define multiple mechanics material systems on the same block, i.e. for multiple phases
- blockThe list of blocks (ids or names) that this object will be applied
C++ Type:std::vector<SubdomainName>
Unit:(no unit assumed)
Controllable:No
Description:The list of blocks (ids or names) that this object will be applied
- boundaryThe list of boundaries (ids or names) from the mesh where this object applies
C++ Type:std::vector<BoundaryName>
Unit:(no unit assumed)
Controllable:No
Description:The list of boundaries (ids or names) from the mesh where this object applies
- constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
Default:NONE
C++ Type:MooseEnum
Unit:(no unit assumed)
Controllable:No
Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped
- declare_suffixAn optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any declared properties. The suffix will be prepended with a '_' character.
- degradation_functiongpThe degradation function
Default:gp
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:The degradation function
- plastic_energy_densitypsipName of the plastic energy density computed by this material model
Default:psip
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:Name of the plastic energy density computed by this material model
- prop_getter_suffixAn optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:An optional suffix parameter that can be appended to any attempt to retrieve/get material properties. The suffix will be prepended with a '_' character.
- taylor_quinney_factor1The Taylor-Quinney factor. 1 (default) for purely dissipative, 0 for purely energetic.
Default:1
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The Taylor-Quinney factor. 1 (default) for purely dissipative, 0 for purely energetic.
- use_interpolated_stateFalseFor the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Default:False
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:For the old and older state use projected material properties interpolated at the quadrature points. To set up projection use the ProjectedStatefulMaterialStorageAction.
Optional Parameters
- control_tagsAdds user-defined labels for accessing object parameters via control logic.
C++ Type:std::vector<std::string>
Unit:(no unit assumed)
Controllable:No
Description:Adds user-defined labels for accessing object parameters via control logic.
- enableTrueSet the enabled status of the MooseObject.
Default:True
C++ Type:bool
Unit:(no unit assumed)
Controllable:Yes
Description:Set the enabled status of the MooseObject.
- implicitTrueDetermines whether this object is calculated using an implicit or explicit form
Default:True
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Determines whether this object is calculated using an implicit or explicit form
- seed0The seed for the master random number generator
Default:0
C++ Type:unsigned int
Unit:(no unit assumed)
Controllable:No
Description:The seed for the master random number generator
- use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Default:False
C++ Type:bool
Unit:(no unit assumed)
Controllable:No
Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.
Advanced Parameters
- output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)
C++ Type:std::vector<std::string>
Unit:(no unit assumed)
Controllable:No
Description:List of material properties, from this material, to output (outputs must also be defined to an output type)
- outputsnone Vector of output names where you would like to restrict the output of variables(s) associated with this object
Default:none
C++ Type:std::vector<OutputName>
Unit:(no unit assumed)
Controllable:No
Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object
Outputs Parameters
Input Files
- (test/tests/hardening_models/arrhenius_law_hardening.i)
- (tutorials/homogeneous_cube/Hencky_J2_arrheniuslawhardening/elastoplasticity.i)
- (tutorials/homogeneous_cube/Hencky_J2_arrheniuslawhardening_creep/elastoplasticity.i)
- (tutorials/homogeneous_cube/Hencky_J2_arrheniuslawhardening_creep_thermal/elastoplasticity.i)