Line data    Source code

       1             : //* This file is part of the MOOSE framework
       2             : //* https://mooseframework.inl.gov
       3             : //*
       4             : //* All rights reserved, see COPYRIGHT for full restrictions
       5             : //* https://github.com/idaholab/moose/blob/master/COPYRIGHT
       6             : //*
       7             : //* Licensed under LGPL 2.1, please see LICENSE for details
       8             : //* https://www.gnu.org/licenses/lgpl-2.1.html
       9             : 
      10             : #include "PhaseNormalTensor.h"
      11             : 
      12             : registerMooseObject("PhaseFieldApp", PhaseNormalTensor);
      13             : 
      14             : InputParameters
      15           0 : PhaseNormalTensor::validParams()
      16             : {
      17           0 :   InputParameters params = Material::validParams();
      18           0 :   params.addClassDescription("Calculate normal tensor of a phase based on gradient");
      19           0 :   params.addRequiredCoupledVar("phase", "Phase variable");
      20           0 :   params.addRequiredParam<MaterialPropertyName>("normal_tensor_name", "Name of normal tensor");
      21           0 :   return params;
      22           0 : }
      23             : 
      24           0 : PhaseNormalTensor::PhaseNormalTensor(const InputParameters & parameters)
      25             :   : DerivativeMaterialInterface<Material>(parameters),
      26           0 :     _grad_u(coupledGradient("phase")),
      27           0 :     _normal_tensor(
      28           0 :         declareProperty<RankTwoTensor>(getParam<MaterialPropertyName>("normal_tensor_name")))
      29             : {
      30           0 : }
      31             : 
      32             : void
      33           0 : PhaseNormalTensor::initQpStatefulProperties()
      34             : {
      35           0 :   _normal_tensor[_qp].zero();
      36           0 : }
      37             : 
      38             : void
      39           0 : PhaseNormalTensor::computeQpProperties()
      40             : {
      41           0 :   const Real magnitude = _grad_u[_qp].norm();
      42             : 
      43           0 :   if (magnitude > 0.0)
      44             :   {
      45             :     const RealVectorValue vector = _grad_u[_qp] / magnitude;
      46           0 :     _normal_tensor[_qp] = RankTwoTensor::selfOuterProduct(vector);
      47             :   }
      48             :   else
      49           0 :     _normal_tensor[_qp].zero();
      50           0 : }