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rAKA/src/model/phase_field/phasefields/phasefield_exponential.cc
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phasefield_exponential.cc
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/**
* Copyright (©) 2020-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* 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 "phasefield_exponential.hh"
#include "aka_common.hh"
#include <tuple>
namespace akantu {
/* -------------------------------------------------------------------------- */
template <Int dim>
PhaseFieldExponential<dim>::PhaseFieldExponential(PhaseFieldModel & model,
const ID & id)
: PhaseField(model, id) {}
/* -------------------------------------------------------------------------- */
template <Int dim> void PhaseFieldExponential<dim>::updateInternalParameters() {
PhaseField::updateInternalParameters();
for (const auto & type :
getElementFilter().elementTypes(spatial_dimension, _not_ghost)) {
for (auto && [dam, gc] :
zip(make_view<dim, dim>(this->damage_energy(type, _not_ghost)),
this->g_c(type, _not_ghost))) {
dam = Matrix<Real, dim, dim>::Identity() * gc * this->l0;
}
}
}
/* -------------------------------------------------------------------------- */
template <Int dim>
void PhaseFieldExponential<dim>::computeDrivingForce(ElementType el_type,
GhostType ghost_type) {
auto && arguments = zip(this->phi(el_type, ghost_type),
this->phi.previous(el_type, ghost_type),
make_view(this->strain(el_type, ghost_type),
spatial_dimension, spatial_dimension));
if (this->isotropic) {
for (auto && [phi_quad, phi_hist_quad, strain] : arguments) {
computePhiIsotropicOnQuad(strain, phi_quad, phi_hist_quad);
}
} else {
for (auto && [phi_quad, phi_hist_quad, strain] : arguments) {
computePhiOnQuad(strain, phi_quad, phi_hist_quad);
}
}
for (auto && [phi_quad, driving_force_quad, dam_energy_density_quad,
dam_on_quad, driving_energy_quad, damage_energy_quad,
gradd_quad, g_c_quad] :
zip(this->phi(el_type, ghost_type),
this->driving_force(el_type, ghost_type),
this->damage_energy_density(el_type, ghost_type),
this->damage_on_qpoints(el_type, _not_ghost),
make_view(this->driving_energy(el_type, ghost_type),
spatial_dimension),
make_view(this->damage_energy(el_type, ghost_type),
spatial_dimension, spatial_dimension),
make_view(this->gradd(el_type, ghost_type), spatial_dimension),
this->g_c(el_type, ghost_type))) {
computeDamageEnergyDensityOnQuad(phi_quad, dam_energy_density_quad,
g_c_quad);
driving_force_quad = dam_on_quad * dam_energy_density_quad - 2 * phi_quad;
driving_energy_quad = damage_energy_quad * gradd_quad;
}
}
/* -------------------------------------------------------------------------- */
template <Int dim>
void PhaseFieldExponential<dim>::computeDissipatedEnergy(ElementType el_type) {
AKANTU_DEBUG_IN();
for (auto && [dis_energy, damage, grad_d, g_c] :
zip(this->dissipated_energy(el_type, _not_ghost),
this->damage_on_qpoints(el_type, _not_ghost),
make_view<dim>(this->gradd(el_type, _not_ghost)),
this->g_c(el_type, _not_ghost))) {
this->computeDissipatedEnergyOnQuad(damage, grad_d, dis_energy, g_c);
}
AKANTU_DEBUG_OUT();
}
/* -------------------------------------------------------------------------- */
template <Int dim>
void PhaseFieldExponential<dim>::computeDissipatedEnergyByElement(
ElementType type, Idx index, Vector<Real> & edis_on_quad_points) {
auto && fem = this->getFEEngine();
auto nb_quadrature_points = fem.getNbIntegrationPoints(type);
auto quad = index * nb_quadrature_points;
auto gradd_it = make_view<dim>(this->gradd(type)).begin() + quad;
auto gradd_end = gradd_it + nb_quadrature_points;
auto damage_it = this->damage_on_qpoints(type).begin() + quad;
auto g_c_it = this->g_c(type).begin() + quad;
auto edis_quad = edis_on_quad_points.begin();
for (; gradd_it != gradd_end; ++gradd_it, ++damage_it, ++edis_quad) {
this->computeDissipatedEnergyOnQuad(*damage_it, *gradd_it, *edis_quad,
*g_c_it);
}
}
/* -------------------------------------------------------------------------- */
template <Int dim>
void PhaseFieldExponential<dim>::computeDissipatedEnergyByElement(
const Element & element, Vector<Real> & edis_on_quad_points) {
computeDissipatedEnergyByElement(element.type, element.element,
edis_on_quad_points);
}
/* -------------------------------------------------------------------------- */
template class PhaseFieldExponential<1>;
template class PhaseFieldExponential<2>;
template class PhaseFieldExponential<3>;
const bool phase_field_exponential_is_allocated [[maybe_unused]] =
instantiatePhaseField<PhaseFieldExponential>("exponential");
} // namespace akantu
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