TensorMechanicsPlasticMohrCoulombMulti

under construction:Undocumented Class

The TensorMechanicsPlasticMohrCoulombMulti 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.

Non-associative Mohr-Coulomb plasticity with hardening/softening

Input Parameters

  • cohesionA TensorMechanicsHardening UserObject that defines hardening of the cohesion

    C++ Type:UserObjectName

    Options:

    Description:A TensorMechanicsHardening UserObject that defines hardening of the cohesion

  • friction_angleA TensorMechanicsHardening UserObject that defines hardening of the friction angle (in radians)

    C++ Type:UserObjectName

    Options:

    Description:A TensorMechanicsHardening UserObject that defines hardening of the friction angle (in radians)

  • internal_constraint_toleranceThe Newton-Raphson process is only deemed converged if the internal constraint is less than this.

    C++ Type:double

    Options:

    Description:The Newton-Raphson process is only deemed converged if the internal constraint is less than this.

  • dilation_angleA TensorMechanicsHardening UserObject that defines hardening of the dilation angle (in radians)

    C++ Type:UserObjectName

    Options:

    Description:A TensorMechanicsHardening UserObject that defines hardening of the dilation angle (in radians)

  • yield_function_toleranceIf the yield function is less than this amount, the (stress, internal parameter) are deemed admissible.

    C++ Type:double

    Options:

    Description:If the yield function is less than this amount, the (stress, internal parameter) are deemed admissible.

Required Parameters

  • execute_onTIMESTEP_ENDThe list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.

    Default:TIMESTEP_END

    C++ Type:ExecFlagEnum

    Options:NONE INITIAL LINEAR NONLINEAR TIMESTEP_END TIMESTEP_BEGIN FINAL CUSTOM

    Description:The list of flag(s) indicating when this object should be executed, the available options include NONE, INITIAL, LINEAR, NONLINEAR, TIMESTEP_END, TIMESTEP_BEGIN, FINAL, CUSTOM.

  • shiftYield surface is shifted by this amount to avoid problems with defining derivatives when eigenvalues are equal. If this is larger than f_tol, a warning will be issued. This may be set very small when using the custom returnMap. Default = f_tol.

    C++ Type:double

    Options:

    Description:Yield surface is shifted by this amount to avoid problems with defining derivatives when eigenvalues are equal. If this is larger than f_tol, a warning will be issued. This may be set very small when using the custom returnMap. Default = f_tol.

  • use_custom_returnMapTrueUse a custom return-map algorithm for this plasticity model, which may speed up computations considerably. Set to true only for isotropic elasticity with no hardening of the dilation angle. In this case you may set 'shift' very small.

    Default:True

    C++ Type:bool

    Options:

    Description:Use a custom return-map algorithm for this plasticity model, which may speed up computations considerably. Set to true only for isotropic elasticity with no hardening of the dilation angle. In this case you may set 'shift' very small.

  • max_iterations10Maximum number of Newton-Raphson iterations allowed in the custom return-map algorithm. For highly nonlinear hardening this may need to be higher than 10.

    Default:10

    C++ Type:unsigned int

    Options:

    Description:Maximum number of Newton-Raphson iterations allowed in the custom return-map algorithm. For highly nonlinear hardening this may need to be higher than 10.

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.

  • allow_duplicate_execution_on_initialFalseIn the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

    Default:False

    C++ Type:bool

    Options:

    Description:In the case where this UserObject is depended upon by an initial condition, allow it to be executed twice during the initial setup (once before the IC and again after mesh adaptivity (if applicable).

  • 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

    Options:

    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.

  • force_preauxFalseForces the GeneralUserObject to be executed in PREAUX

    Default:False

    C++ Type:bool

    Options:

    Description:Forces the GeneralUserObject to be executed in PREAUX

Advanced Parameters

Input Files

References