SolidMechanicsPlasticIsotropicSD.h

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//* This file is part of the MOOSE framework
//* https://mooseframework.inl.gov
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//* 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 "SolidMechanicsPlasticJ2.h"
#include "RankFourTensor.h"

class SolidMechanicsPlasticIsotropicSD : public SolidMechanicsPlasticJ2
{
public:
  static InputParameters validParams();

  SolidMechanicsPlasticIsotropicSD(const InputParameters & parameters);

protected:
  const Real _b;

  Real _c;

  const bool _associative;

  RankFourTensor _h;

  Real _a;

  Real dphi_dj2(const Real j2, const Real j3) const;

  Real dphi_dj3(const Real j2, const Real j3) const;

  Real dfj2_dj2(const Real j2, const Real j3) const;

  Real dfj2_dj3(const Real j2, const Real j3) const;

  Real dfj3_dj2(const Real j2, const Real j3) const;

  Real dfj3_dj3(const Real j2, const Real j3) const;

  RankTwoTensor dI_sigma() const;

  RankTwoTensor dj2_dSkl(const RankTwoTensor & stress) const;

  Real yieldFunction(const RankTwoTensor & stress, Real intnl) const override;

  RankTwoTensor dyieldFunction_dstress(const RankTwoTensor & stress, Real intnl) const override;

  RankFourTensor dflowPotential_dstress(const RankTwoTensor & stress, Real intnl) const override;

  RankTwoTensor flowPotential(const RankTwoTensor & stress, Real intnl) const override;
};