FiniteStrainCrystalPlasticity

under construction:Undocumented Class

The FiniteStrainCrystalPlasticity has not been documented, if you would like to contribute to MOOSE by writing documentation, please see Documenting MOOSE. The content contained on this page explains the typical documentation associated with a MooseObject; however, what is contained is ultimately determined by what is necessary to make the documentation clear for users.

Crystal Plasticity base class: FCC system with power law flow rule implemented

Input Parameters

  • nssNumber of slip systems

    C++ Type:int

    Options:

    Description:Number of slip systems

  • slip_sys_file_nameName of the file containing the slip system

    C++ Type:FileName

    Options:

    Description:Name of the file containing the slip system

Required Parameters

  • rtol1e-06Constitutive stress residue relative tolerance

    Default:1e-06

    C++ Type:double

    Options:

    Description:Constitutive stress residue relative tolerance

  • store_stress_oldFalseParameter which indicates whether the old stress state, required for the HHT time integration scheme and Rayleigh damping, needs to be stored

    Default:False

    C++ Type:bool

    Options:

    Description:Parameter which indicates whether the old stress state, required for the HHT time integration scheme and Rayleigh damping, needs to be stored

  • abs_tol1e-06Constitutive stress residue absolute tolerance

    Default:1e-06

    C++ Type:double

    Options:

    Description:Constitutive stress residue absolute tolerance

  • line_search_methodCUT_HALFThe method used in line search

    Default:CUT_HALF

    C++ Type:MooseEnum

    Options:CUT_HALF BISECTION

    Description:The method used in line search

  • slip_sys_hard_prop_file_nameName of the file containing the values of hardness evolution parameters

    C++ Type:FileName

    Options:

    Description:Name of the file containing the values of hardness evolution parameters

  • min_line_search_step_size0.01Minimum line search step size

    Default:0.01

    C++ Type:double

    Options:

    Description:Minimum line search step size

  • random_scaling_var1e+09Random scaling variable: Large value can cause non-positive definiteness

    Default:1e+09

    C++ Type:double

    Options:

    Description:Random scaling variable: Large value can cause non-positive definiteness

  • slip_sys_res_prop_file_nameName of the file containing the initial values of slip system resistances

    C++ Type:FileName

    Options:

    Description:Name of the file containing the initial values of slip system resistances

  • line_search_tol0.5Line search bisection method tolerance

    Default:0.5

    C++ Type:double

    Options:

    Description:Line search bisection method tolerance

  • input_random_scaling_varFalseFlag to input scaling variable: _Cijkl(0,0,0,0) when false

    Default:False

    C++ Type:bool

    Options:

    Description:Flag to input scaling variable: _Cijkl(0,0,0,0) when false

  • num_slip_sys_flowrate_props2Number of flow rate properties for a slip system

    Default:2

    C++ Type:unsigned int

    Options:

    Description:Number of flow rate properties for a slip system

  • flowpropsParameters used in slip rate equations

    C++ Type:std::vector

    Options:

    Description:Parameters used in slip rate equations

  • slip_sys_flow_prop_file_nameName of the file containing the values of slip rate equation parameters

    C++ Type:FileName

    Options:

    Description:Name of the file containing the values of slip rate equation parameters

  • maxiter100Maximum number of iterations for stress update

    Default:100

    C++ Type:unsigned int

    Options:

    Description:Maximum number of iterations for stress update

  • boundaryThe list of boundary IDs from the mesh where this boundary condition applies

    C++ Type:std::vector

    Options:

    Description:The list of boundary IDs from the mesh where this boundary condition applies

  • hpropsHardening properties

    C++ Type:std::vector

    Options:

    Description:Hardening properties

  • random_seed2000Random integer used to generate random stress when constitutive failure occurs

    Default:2000

    C++ Type:unsigned int

    Options:

    Description:Random integer used to generate random stress when constitutive failure occurs

  • num_slip_sys_props0Number of slip system specific properties provided in the file containing slip system normals and directions

    Default:0

    C++ Type:unsigned int

    Options:

    Description:Number of slip system specific properties provided in the file containing slip system normals and directions

  • read_prop_user_objectThe ElementReadPropertyFile GeneralUserObject to read element specific property values from file

    C++ Type:UserObjectName

    Options:

    Description:The ElementReadPropertyFile GeneralUserObject to read element specific property values from file

  • intvar_read_typenoneRead from options for initial value of internal variables: Default from .i file

    Default:none

    C++ Type:MooseEnum

    Options:slip_sys_file slip_sys_res_file none

    Description:Read from options for initial value of internal variables: Default from .i file

  • tan_mod_typenoneType of tangent moduli for preconditioner: default elastic

    Default:none

    C++ Type:MooseEnum

    Options:exact none

    Description:Type of tangent moduli for preconditioner: default elastic

  • gpropsInitial values of slip system resistances

    C++ Type:std::vector

    Options:

    Description:Initial values of slip system resistances

  • gen_random_stress_flagFalseFlag to generate random stress to perform time cutback on constitutive failure

    Default:False

    C++ Type:bool

    Options:

    Description:Flag to generate random stress to perform time cutback on constitutive failure

  • computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

    Default:True

    C++ Type:bool

    Options:

    Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

  • 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

    Options:

    Description:Optional parameter that allows the user to define multiple mechanics material systems on the same block, i.e. for multiple phases

  • maximum_substep_iteration1Maximum number of substep iteration

    Default:1

    C++ Type:unsigned int

    Options:

    Description:Maximum number of substep iteration

  • gtol100Constitutive slip system resistance residual tolerance

    Default:100

    C++ Type:double

    Options:

    Description:Constitutive slip system resistance residual tolerance

  • use_line_searchFalseUse line search in constitutive update

    Default:False

    C++ Type:bool

    Options:

    Description:Use line search in constitutive update

  • line_search_maxiter20Line search bisection method maximum number of iteration

    Default:20

    C++ Type:unsigned int

    Options:

    Description:Line search bisection method maximum number of iteration

  • slip_incr_tol0.02Maximum allowable slip in an increment

    Default:0.02

    C++ Type:double

    Options:

    Description:Maximum allowable slip in an increment

  • maxitergss100Maximum number of iterations for slip system resistance update

    Default:100

    C++ Type:unsigned int

    Options:

    Description:Maximum number of iterations for slip system resistance update

  • blockThe list of block ids (SubdomainID) that this object will be applied

    C++ Type:std::vector

    Options:

    Description:The list of block ids (SubdomainID) that this object will be applied

Optional Parameters

  • control_tagsAdds user-defined labels for accessing object parameters via control logic.

    C++ Type:std::vector

    Options:

    Description:Adds user-defined labels for accessing object parameters via control logic.

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Options:

    Description:Set the enabled status of the MooseObject.

  • seed0The seed for the master random number generator

    Default:0

    C++ Type:unsigned int

    Options:

    Description:The seed for the master random number generator

  • implicitTrueDetermines whether this object is calculated using an implicit or explicit form

    Default:True

    C++ Type:bool

    Options:

    Description:Determines whether this object is calculated using an implicit or explicit form

  • 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 computeSubdomainProperties() 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

    Options:NONE ELEMENT SUBDOMAIN

    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 computeSubdomainProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

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

    Options:

    Description:List of material properties, from this material, to output (outputs must also be defined to an output type)

  • outputsnone Vector of output names were you would like to restrict the output of variables(s) associated with this object

    Default:none

    C++ Type:std::vector

    Options:

    Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object

Outputs Parameters

Input Files

Child Objects

References