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Mon, May 6, 07:47

material_phasefield.cc
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/**
* @file material_phasefield.cc
*
* @author Mohit Pundir <mohit.pundir@epfl.ch>
*
* @date creation: Tue Oct 02 2018
* @date last modification: Tue Oct 02 2018
*
* @brief Specialization of the material class for the phasefield material
*
* @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 "material_phasefield.hh"
#include "solid_mechanics_model.hh"
namespace akantu {
/* -------------------------------------------------------------------------- */
template<UInt spatial_dimension>
MaterialPhaseField<spatial_dimension>::MaterialPhaseField(SolidMechanicsModel & model,
const ID & id)
: Parent(model, id) {
AKANTU_DEBUG_IN();
this->registerParam("eta", eta, Real(0.), _pat_parsable, "eta");
this->damage.initialize(0);
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template <UInt spatial_dimension>
void MaterialPhaseField<spatial_dimension>::computeStress(ElementType el_type,
GhostType ghost_type) {
AKANTU_DEBUG_IN();
auto dam = this->damage(el_type, ghost_type).begin();
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN(el_type, ghost_type);
computeStressOnQuad(grad_u, sigma, *dam);
++dam;
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END;
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template <UInt spatial_dimension>
void MaterialPhaseField<spatial_dimension>::computeTangentModuli(
ElementType el_type, Array<Real> & tangent_matrix,
GhostType ghost_type) {
AKANTU_DEBUG_IN();
Parent::computeTangentModuli(el_type, tangent_matrix,
ghost_type);
Real * dam = this->damage(el_type, ghost_type).storage();
MATERIAL_TANGENT_QUADRATURE_POINT_LOOP_BEGIN(tangent_matrix);
computeTangentModuliOnQuad(tangent, *dam);
++dam;
MATERIAL_TANGENT_QUADRATURE_POINT_LOOP_END;
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template <UInt spatial_dimension>
void MaterialPhaseField<spatial_dimension>::computeTangentModuliOnQuad(
Matrix<Real> & tangent, Real & dam) {
tangent *= (1 - dam)*(1 - dam) + eta;
}
INSTANTIATE_MATERIAL(phasefield, MaterialPhaseField);
} // akantu

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