- A'A' parameter for the JC model
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
Controllable:No
Description:'A' parameter for the JC model
- B'B' parameter for the JC model
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:'B' parameter for the JC model
- C'C' parameter for the JC model
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:'C' parameter for the JC model
- TTemperature
C++ Type:std::vector<VariableName>
Unit:(no unit assumed)
Controllable:No
Description:Temperature
- T0Reference temperature of the material
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:Reference temperature of the material
- TmThe melting temperature of the material
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The melting temperature of the material
- mThe exponent m in the JC Model
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The exponent m in the JC Model
- nThe exponent n in the JC Model
C++ Type:double
Unit:(no unit assumed)
Controllable:No
Description:The exponent n in the JC Model
- 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_plastic_strainThe $\epsilon_0$ parameter in the JC Model
C++ Type:double
Unit:(no unit assumed)
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
Unit:(no unit assumed)
Controllable:No
Description:The ref plastic strain rate parameter in the JC model
- sigma_0The reference yield stress $\sigma_0$
C++ Type:MaterialPropertyName
Unit:(no unit assumed)
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
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