CrystalPlasticitySlipRate Class Reference

Crystal plasticity slip rate userobject class The virtual functions written below must be over-ridden in derived classes to provide actual values. More...

#include <CrystalPlasticitySlipRate.h>

Inheritance diagram for CrystalPlasticitySlipRate:

Public Member Functions
	CrystalPlasticitySlipRate (const InputParameters &parameters)
virtual void	calcFlowDirection (unsigned int qp, std::vector< RankTwoTensor > &flow_direction) const =0
virtual bool	calcSlipRate (unsigned qp, Real dt, std::vector< Real > &val) const =0
virtual bool	calcSlipRateDerivative (unsigned qp, Real dt, std::vector< Real > &val) const =0
virtual unsigned int	variableSize () const
	Returns the size of variable. More...

Static Public Member Functions
static InputParameters	validParams ()

Protected Member Functions
virtual void	getSlipSystems ()
virtual void	readFileFlowRateParams ()
virtual void	getFlowRateParams ()

Protected Attributes
unsigned int	_num_slip_sys_props
	Number of slip system specific properties provided in the file containing slip system normals and directions. More...
std::vector< Real >	_flowprops
std::string	_slip_sys_file_name
	File should contain slip plane normal and direction. More...
std::string	_slip_sys_flow_prop_file_name
	File should contain values of the flow rate equation parameters. More...
unsigned int	_num_slip_sys_flowrate_props
	Number of slip system flow rate parameters. More...
Real	_slip_incr_tol
	Slip increment tolerance. More...
DenseVector< Real >	_mo
DenseVector< Real >	_no
const MaterialProperty< RankTwoTensor > &	_crysrot
	Crystal rotation. More...
unsigned int	_variable_size

Detailed Description

Crystal plasticity slip rate userobject class The virtual functions written below must be over-ridden in derived classes to provide actual values.

Definition at line 25 of file CrystalPlasticitySlipRate.h.

Constructor & Destructor Documentation

CrystalPlasticitySlipRate()

CrystalPlasticitySlipRate::CrystalPlasticitySlipRate

(

const InputParameters &

parameters

)

Definition at line 42 of file CrystalPlasticitySlipRate.C.

  : CrystalPlasticityUOBase(parameters),
    _num_slip_sys_props(getParam<unsigned int>("num_slip_sys_props")),
    _flowprops(getParam<std::vector<Real>>("flowprops")),
    _slip_sys_file_name(getParam<FileName>("slip_sys_file_name")),
    _slip_sys_flow_prop_file_name(getParam<FileName>("slip_sys_flow_prop_file_name")),
    _num_slip_sys_flowrate_props(getParam<unsigned int>("num_slip_sys_flowrate_props")),
    _slip_incr_tol(getParam<Real>("slip_incr_tol")),
    _mo(_variable_size * LIBMESH_DIM),
    _no(_variable_size * LIBMESH_DIM),
    _crysrot(getMaterialPropertyByName<RankTwoTensor>("crysrot"))
{
  getSlipSystems();
}

Member Function Documentation

calcFlowDirection()

virtual void CrystalPlasticitySlipRate::calcFlowDirection ( unsigned int  qp, std::vector< RankTwoTensor > &  flow_direction  ) const

pure virtual

Implemented in CrystalPlasticitySlipRateGSS.

calcSlipRate()

virtual bool CrystalPlasticitySlipRate::calcSlipRate ( unsigned  qp, Real  dt, std::vector< Real > &  val  ) const

pure virtual

calcSlipRateDerivative()

virtual bool CrystalPlasticitySlipRate::calcSlipRateDerivative ( unsigned  qp, Real  dt, std::vector< Real > &  val  ) const

pure virtual

getFlowRateParams()

void CrystalPlasticitySlipRate::getFlowRateParams ( )

protectedvirtual

Reimplemented in CrystalPlasticitySlipRateGSS.

Definition at line 63 of file CrystalPlasticitySlipRate.C.

{
}

getSlipSystems()

void CrystalPlasticitySlipRate::getSlipSystems ( )

protectedvirtual

Definition at line 68 of file CrystalPlasticitySlipRate.C.

{
  Real vec[LIBMESH_DIM];
  std::ifstream fileslipsys;
 
  MooseUtils::checkFileReadable(_slip_sys_file_name);
 
  fileslipsys.open(_slip_sys_file_name.c_str());
 
  for (unsigned int i = 0; i < _variable_size; ++i)
  {
    // Read the slip normal
    for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
      if (!(fileslipsys >> vec[j]))
        mooseError(
            "CrystalPlasticitySlipRate Error: Premature end of file reading slip system file \n");
 
    // Normalize the vectors
    Real mag;
    mag = Utility::pow<2>(vec[0]) + Utility::pow<2>(vec[1]) + Utility::pow<2>(vec[2]);
    mag = std::sqrt(mag);
 
    for (unsigned j = 0; j < LIBMESH_DIM; ++j)
      _no(i * LIBMESH_DIM + j) = vec[j] / mag;
 
    // Read the slip direction
    for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
      if (!(fileslipsys >> vec[j]))
        mooseError(
            "CrystalPlasticitySlipRate Error: Premature end of file reading slip system file \n");
 
    // Normalize the vectors
    mag = Utility::pow<2>(vec[0]) + Utility::pow<2>(vec[1]) + Utility::pow<2>(vec[2]);
    mag = std::sqrt(mag);
 
    for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
      _mo(i * LIBMESH_DIM + j) = vec[j] / mag;
 
    mag = 0.0;
    for (unsigned int j = 0; j < LIBMESH_DIM; ++j)
      mag += _mo(i * LIBMESH_DIM + j) * _no(i * LIBMESH_DIM + j);
 
    if (std::abs(mag) > 1e-8)
      mooseError("CrystalPlasticitySlipRate Error: Slip direction and normal not orthonormal, "
                 "System number = ",
                 i,
                 "\n");
  }
 
  fileslipsys.close();
}

Referenced by CrystalPlasticitySlipRate().

readFileFlowRateParams()

void CrystalPlasticitySlipRate::readFileFlowRateParams ( )

protectedvirtual

Reimplemented in CrystalPlasticitySlipRateGSS.

Definition at line 58 of file CrystalPlasticitySlipRate.C.

{
}

validParams()

InputParameters CrystalPlasticitySlipRate::validParams ( )

static

Definition at line 18 of file CrystalPlasticitySlipRate.C.

{
  InputParameters params = CrystalPlasticityUOBase::validParams();
  params.addParam<unsigned int>("num_slip_sys_props",
                                0,
                                "Number of slip system specific properties provided in the file "
                                "containing slip system normals and directions");
  params.addParam<std::vector<Real>>("flowprops", "Parameters used in slip rate equations");
  params.addRequiredParam<FileName>("slip_sys_file_name",
                                    "Name of the file containing the slip system");
  params.addParam<FileName>(
      "slip_sys_flow_prop_file_name",
      "",
      "Name of the file containing the values of slip rate equation parameters");
  params.addParam<unsigned int>(
      "num_slip_sys_flowrate_props",
      2,
      "Number of flow rate properties for a slip system"); // Used for reading flow rate parameters
  params.addParam<Real>("slip_incr_tol", 2e-2, "Maximum allowable slip in an increment");
  params.addClassDescription(
      "Crystal plasticity slip rate class.  Override the virtual functions in your class");
  return params;
}

Referenced by CrystalPlasticitySlipRateGSS::validParams().

variableSize()

unsigned int CrystalPlasticityUOBase::variableSize ( ) const

virtualinherited

Returns the size of variable.

Definition at line 30 of file CrystalPlasticityUOBase.C.

{
  return _variable_size;
}

Member Data Documentation

_crysrot

const MaterialProperty<RankTwoTensor>& CrystalPlasticitySlipRate::_crysrot

protected

Crystal rotation.

Definition at line 70 of file CrystalPlasticitySlipRate.h.

Referenced by CrystalPlasticitySlipRateGSS::calcFlowDirection().

_flowprops

std::vector<Real> CrystalPlasticitySlipRate::_flowprops

protected

Definition at line 47 of file CrystalPlasticitySlipRate.h.

Referenced by CrystalPlasticitySlipRateGSS::getFlowRateParams().

_mo

DenseVector<Real> CrystalPlasticitySlipRate::_mo

protected

Definition at line 66 of file CrystalPlasticitySlipRate.h.

Referenced by CrystalPlasticitySlipRateGSS::calcFlowDirection(), and getSlipSystems().

_no

DenseVector<Real> CrystalPlasticitySlipRate::_no

protected

Definition at line 67 of file CrystalPlasticitySlipRate.h.

Referenced by CrystalPlasticitySlipRateGSS::calcFlowDirection(), and getSlipSystems().

_num_slip_sys_flowrate_props

unsigned int CrystalPlasticitySlipRate::_num_slip_sys_flowrate_props

protected

Number of slip system flow rate parameters.

Definition at line 61 of file CrystalPlasticitySlipRate.h.

Referenced by CrystalPlasticitySlipRateGSS::getFlowRateParams(), and CrystalPlasticitySlipRateGSS::readFileFlowRateParams().

_num_slip_sys_props

unsigned int CrystalPlasticitySlipRate::_num_slip_sys_props

protected

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

Definition at line 45 of file CrystalPlasticitySlipRate.h.

_slip_incr_tol

Real CrystalPlasticitySlipRate::_slip_incr_tol

protected

Slip increment tolerance.

Definition at line 64 of file CrystalPlasticitySlipRate.h.

Referenced by CrystalPlasticitySlipRateGSS::calcSlipRate().

_slip_sys_file_name

std::string CrystalPlasticitySlipRate::_slip_sys_file_name

protected

File should contain slip plane normal and direction.

Definition at line 50 of file CrystalPlasticitySlipRate.h.

Referenced by getSlipSystems().

_slip_sys_flow_prop_file_name

std::string CrystalPlasticitySlipRate::_slip_sys_flow_prop_file_name

protected

File should contain values of the flow rate equation parameters.

Values for every slip system must be provided. Should have the same order of slip systens as in slip_sys_file. The option of reading all the properties from .i is still present.

Definition at line 58 of file CrystalPlasticitySlipRate.h.

Referenced by CrystalPlasticitySlipRateGSS::CrystalPlasticitySlipRateGSS(), and CrystalPlasticitySlipRateGSS::readFileFlowRateParams().

_variable_size

unsigned int CrystalPlasticityUOBase::_variable_size

protectedinherited

Definition at line 33 of file CrystalPlasticityUOBase.h.

Referenced by CrystalPlasticitySlipRateGSS::calcFlowDirection(), CrystalPlasticitySlipRateGSS::calcSlipRate(), CrystalPlasticitySlipRateGSS::calcSlipRateDerivative(), CrystalPlasticitySlipResistanceGSS::calcSlipResistance(), CrystalPlasticityStateVarRateComponentGSS::calcStateVariableEvolutionRateComponent(), CrystalPlasticityStateVarRateComponentVoce::calcStateVariableEvolutionRateComponent(), CrystalPlasticitySlipRateGSS::getFlowRateParams(), getSlipSystems(), CrystalPlasticityStateVariable::initSlipSysProps(), CrystalPlasticityStateVarRateComponentVoce::initSlipSystemGroupID(), CrystalPlasticityStateVarRateComponentVoce::initSlipSystemPlaneID(), CrystalPlasticitySlipRateGSS::readFileFlowRateParams(), CrystalPlasticityStateVariable::readInitialValueFromFile(), CrystalPlasticityStateVariable::updateStateVariable(), and CrystalPlasticityUOBase::variableSize().

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The documentation for this class was generated from the following files:

• tensor_mechanics/include/userobjects/CrystalPlasticitySlipRate.h
• tensor_mechanics/src/userobjects/CrystalPlasticitySlipRate.C