HyperbolicViscoplasticityStressUpdate.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 "RadialReturnStressUpdate.h"
 
class HyperbolicViscoplasticityStressUpdate : public RadialReturnStressUpdate
{
public:
  static InputParameters validParams();
 
  HyperbolicViscoplasticityStressUpdate(const InputParameters & parameters);
 
protected:
  virtual void initQpStatefulProperties() override;
  virtual void propagateQpStatefulProperties() override;
 
  virtual void computeStressInitialize(const Real & effective_trial_stress,
                                       const RankFourTensor & elasticity_tensor) override;
  virtual Real computeResidual(const Real & effective_trial_stress, const Real & scalar) override;
  virtual Real computeDerivative(const Real & effective_trial_stress, const Real & scalar) override;
  virtual void iterationFinalize(const Real & scalar) override;
  virtual void computeStressFinalize(const RankTwoTensor & plasticStrainIncrement) override;
  virtual Real computeHardeningValue(Real scalar);
 
  const std::string _plastic_prepend;
 
  const Real _yield_stress;
  const Real _hardening_constant;
 
  const Real _c_alpha;
  const Real _c_beta;
 
  Real _yield_condition;
 
  Real _xphir;
  Real _xphidp;
 
  MaterialProperty<Real> & _hardening_variable;
  const MaterialProperty<Real> & _hardening_variable_old;
 
  MaterialProperty<RankTwoTensor> & _plastic_strain;
 
  const MaterialProperty<RankTwoTensor> & _plastic_strain_old;
};