ADGrainGrowth.C

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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
 
#include "ADGrainGrowth.h"
 
registerMooseObject("PhaseFieldApp", ADGrainGrowth);
 
InputParameters
ADGrainGrowth::validParams()
{
  InputParameters params = ADGrainGrowthBase::validParams();
  params.addClassDescription("Grain-Boundary model poly-crystalline interface Allen-Cahn Kernel");
  return params;
}
 
ADGrainGrowth::ADGrainGrowth(const InputParameters & parameters)
  : ADGrainGrowthBase(parameters), _gamma(getADMaterialProperty<Real>("gamma_asymm"))
{
}
 
ADReal
ADGrainGrowth::computeDFDOP()
{
  // Sum all other order parameters
  ADReal SumEtaj = 0.0;
  for (unsigned int i = 0; i < _op_num; ++i)
    SumEtaj += (*_vals[i])[_qp] * (*_vals[i])[_qp];
 
  return _mu[_qp] * (_u[_qp] * _u[_qp] * _u[_qp] - _u[_qp] + 2.0 * _gamma[_qp] * _u[_qp] * SumEtaj);
}