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linear_elastic.cpp
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Wed, Jul 2, 21:44

linear_elastic.cpp
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2024 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2024 Lucas Frérot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "linear_elastic.hh"
/* -------------------------------------------------------------------------- */
namespace tamaas {
LinearElastic::LinearElastic(Model* model, std::string op_name)
: Material(model), operator_name(std::move(op_name)) {
TAMAAS_ASSERT(
this->model->getIntegralOperator(operator_name)->getKind() ==
IntegralOperator::dirac,
"Linear operator for linear elastic material should be the dirac kind");
}
void LinearElastic::computeStress(Field& stress, const Field& strain,
const Field& strain_increment) {
stress = strain;
stress += strain_increment;
Grid<Real, dim> stressv{model->getDiscretization(), comp, stress.view()};
this->model->getIntegralOperator(operator_name)->apply(stressv, stressv);
}
void LinearElastic::computeEigenStress(Field& stress, const Field& /*strain*/,
const Field& /*strain_increment*/) {
stress = 0;
}
void LinearElastic::applyTangent(Field& output, const Field& input,
const Field& /*strain*/,
const Field& /*strain_increment*/) {
auto input_nc{const_cast<Field&>(input)};
Grid<Real, dim> inputv{model->getDiscretization(), comp, input_nc.view()},
outputv{model->getDiscretization(), comp, output.view()};
this->model->getIntegralOperator(operator_name)->apply(inputv, outputv);
}
void LinearElastic::update() {}
} // namespace tamaas

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