- A'A' parameter for the JC model
C++ Type:MaterialPropertyName
Controllable:No
Description:'A' parameter for the JC model
- B'B' parameter for the JC model
C++ Type:double
Controllable:No
Description:'B' parameter for the JC model
- C'C' parameter for the JC model
C++ Type:double
Controllable:No
Description:'C' parameter for the JC model
- TTemperature
C++ Type:std::vector<VariableName>
Controllable:No
Description:Temperature
- T0Reference temperature of the material
C++ Type:double
Controllable:No
Description:Reference temperature of the material
- TmThe melting temperature of the material
C++ Type:double
Controllable:No
Description:The melting temperature of the material
- mThe exponent m in the JC Model
C++ Type:double
Controllable:No
Description:The exponent m in the JC Model
- nThe exponent n in the JC Model
C++ Type:double
Controllable:No
Description:The exponent n in the JC Model
- phase_fieldName of the phase-field (damage) variable
C++ Type:std::vector<VariableName>
Controllable:No
Description:Name of the phase-field (damage) variable
- reference_plastic_strainThe $\epsilon_0$ parameter in the JC Model
C++ Type:double
Controllable:No
Description:The $\epsilon_0$ parameter in the JC Model
- reference_plastic_strain_rateThe ref plastic strain rate parameter in the JC model
C++ Type:double
Controllable:No
Description:The ref plastic strain rate parameter in the JC model
- sigma_0The reference yield stress $\sigma_0$
C++ Type:MaterialPropertyName
Controllable:No
Description:The reference yield stress $\sigma_0$
JohnsonCookHardening
The Johnson-Cook plasticity model.
Overview
The Johnson-Cook plasticity model has the following form
Where is the unperturbed yield stress, is the reference plastic strain, is the reference plastic strain rate, is the melting temperature, and is the reference temperature. ,,and are parameters of the Johnson-Cook model.
When put into a variational framework, the Johnson-Cook model defines the following plastic energy
Additionally, the energy is split into energetic and dissipative portions using the Taylor-Quinney factor, .
The flow stresses are defined as the following
The corresponding yield surface is given as
Where is the Mandel stress.
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
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>
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>
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
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
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
Controllable:No
Description:The degradation function
- plastic_energy_densitypsipName of the plastic energy density computed by this material model
Default:psip
C++ Type:MaterialPropertyName
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
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
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
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>
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
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
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
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
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>
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>
Controllable:No
Description:Vector of output names where you would like to restrict the output of variables(s) associated with this object