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rAKA/src/model/model_couplers/solid_phase_coupler.cc
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solid_phase_coupler.cc
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/**
* @file solid_phase_coupler.cc
*
* @author Mohit Pundir <mohit.pundir@epfl.ch>
*
* @date creation: Fri Sep 28 2018
* @date last modification: Fri Sep 28 2018
*
* @brief class for coupling of solid mechancis and phasefield model
*
* @section LICENSE
*
* Copyright (©) 2010-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
* A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "solid_phase_coupler.hh"
/* -------------------------------------------------------------------------- */
namespace akantu {
template<typename SolidType, typename PhaseType>
SolidPhaseCoupler<SolidType, PhaseType>::SolidPhaseCoupler(SolidType & solid, PhaseType & phase)
: solid(solid), phase(phase) {
this->spatial_dimension = solid.getMesh().getSpatialDimension();
}
/* -------------------------------------------------------------------------- */
template<typename SolidType, typename PhaseType>
SolidPhaseCoupler<SolidType, PhaseType>::~SolidPhaseCoupler() {
}
/* -------------------------------------------------------------------------- */
template<typename SolidType, typename PhaseType>
void SolidPhaseCoupler<SolidType, PhaseType>::computeDamageOnQuadPoints(const GhostType & ghost_type) {
AKANTU_DEBUG_IN();
auto & fem = phase.getFEEngine();
auto & mesh = phase.getMesh();
for (auto & dam: phase.getDamage())
dam = std::min(1., 2 *dam - dam * dam);
switch (spatial_dimension) {
case 1: {
auto & mat = static_cast<MaterialPhaseField<1> &>(solid.getMaterial(0));
break;
}
case 2: {
auto & mat = static_cast<MaterialPhaseField<2> &>(solid.getMaterial(0));
auto & damage = mat.getDamage();
for (auto & type: mesh.elementTypes(this->spatial_dimension, ghost_type)) {
auto & damage_on_qpoints_vect = damage(type, ghost_type);
fem.interpolateOnIntegrationPoints(phase.getDamage(), damage_on_qpoints_vect,
1, type, ghost_type);
}
break;
}
default:
auto & mat = static_cast<MaterialPhaseField<3> &>(solid.getMaterial(0));
break;
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template<typename SolidType,typename PhaseType>
void SolidPhaseCoupler<SolidType, PhaseType>::computeStrainOnQuadPoints(const GhostType & ghost_type) {
AKANTU_DEBUG_IN();
auto & mesh = solid.getMesh();
auto & strain_on_qpoints = phase.getStrain();
auto & gradu_on_qpoints = solid.getMaterial(0).getGradU();
for (auto & type: mesh.elementTypes(spatial_dimension, ghost_type)) {
auto & strain_on_qpoints_vect = strain_on_qpoints(type, ghost_type);
auto & gradu_on_qpoints_vect = gradu_on_qpoints(type, ghost_type);
for (auto && values:
zip(make_view(strain_on_qpoints_vect, this->spatial_dimension, this->spatial_dimension),
make_view(gradu_on_qpoints_vect, this->spatial_dimension, this->spatial_dimension))) {
auto & strain = std::get<0>(values);
auto & grad_u = std::get<1>(values);
this->gradUToEpsilon(grad_u, strain);
//std::cout << strain << std::endl;
}
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template<typename SolidType, typename PhaseType>
void SolidPhaseCoupler<SolidType, PhaseType>::solve() {
solid.solveStep();
this->computeStrainOnQuadPoints(_not_ghost);
phase.solveStep();
this->computeDamageOnQuadPoints(_not_ghost);
/// TODO: check for convergence
/// TODO: run for max number of iterations
}
/* -------------------------------------------------------------------------- */
template<typename SolidType, typename PhaseType>
void SolidPhaseCoupler<SolidType, PhaseType>::gradUToEpsilon(const Matrix<Real> & grad_u,
Matrix<Real> & epsilon) {
for (UInt i=0; i < this->spatial_dimension; ++i) {
for (UInt j = 0; j < this->spatial_dimension; ++j)
epsilon(i, j) = 0.5 * (grad_u(i, j) + grad_u(j, i));
}
}
template class SolidPhaseCoupler<SolidMechanicsModel, PhaseFieldModel>;
} // akantu
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