CrystalPlasticityTwinningKalidindiUpdate.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
//*
//* All rights reserved, see COPYRIGHT for full restrictions
//* https://github.com/idaholab/moose/blob/master/COPYRIGHT
//*
//* Licensed under LGPL 2.1, please see LICENSE for details
//* https://www.gnu.org/licenses/lgpl-2.1.html

#pragma once

#include "CrystalPlasticityStressUpdateBase.h"

class CrystalPlasticityTwinningKalidindiUpdate : public CrystalPlasticityStressUpdateBase
{
public:
  static InputParameters validParams();

  CrystalPlasticityTwinningKalidindiUpdate(const InputParameters & parameters);

protected:
  virtual void initQpStatefulProperties() override;
  virtual void setMaterialVectorSize() override;

  virtual void setInitialConstitutiveVariableValues() override;

  virtual void setSubstepConstitutiveVariableValues() override;

  virtual void updateSubstepConstitutiveVariableValues() override;

  virtual bool calculateSlipRate() override;

  virtual void calculateConstitutiveSlipDerivative(std::vector<Real> & dslip_dtau) override;

  virtual void cacheStateVariablesBeforeUpdate() override;

  virtual void calculateStateVariableEvolutionRateComponent() override;

  virtual bool updateStateVariables() override;

  bool calculateTwinVolumeFraction();

  void calculateTwinResistance();

  virtual bool areConstitutiveStateVariablesConverged() override;

  MaterialProperty<Real> & _total_twin_volume_fraction;
  const MaterialProperty<Real> & _total_twin_volume_fraction_old;
  const Real _initial_total_twin_volume_fraction;

  MaterialProperty<std::vector<Real>> & _twin_volume_fraction;
  const MaterialProperty<std::vector<Real>> & _twin_volume_fraction_old;
  MaterialProperty<std::vector<Real>> & _twin_volume_fraction_increment;

  const Real _reference_strain_rate;
  const Real _rate_sensitivity_exponent;

  const Real _characteristic_twin_shear;
  const Real _twin_initial_lattice_friction;
  const Real _non_coplanar_coefficient_twin_hardening;
  const Real _coplanar_coefficient_twin_hardening;
  const Real _noncoplanar_exponent;
  const Real _limit_twin_volume_fraction;

  std::vector<Real> _previous_substep_twin_resistance;
  std::vector<Real> _previous_substep_twin_volume_fraction;
  // ///@}

  std::vector<Real> _twin_resistance_before_update;
  std::vector<Real> _twin_volume_fraction_before_update;
};