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rAKA/test/test_model/test_solid_mechanics_model/test_solid_mechanics_model_cube3d.cc
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test_solid_mechanics_model_cube3d.cc
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/**
* @file test_solid_mechanics_model_cube3d.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
*
* @date creation: Wed Aug 04 2010
* @date last modification: Thu Aug 06 2015
*
* @brief test of the class SolidMechanicsModel on the 3d cube
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014, 2015 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_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
#include <fstream>
/* -------------------------------------------------------------------------- */
int main(int argc, char * argv[]) {
akantu::initialize("material.dat", argc, argv);
akantu::UInt max_steps = 10000;
akantu::Real epot, ekin;
akantu::Mesh mesh(3);
mesh.read("cube1.msh");
akantu::SolidMechanicsModel model(mesh);
model.initFull();
akantu::Real time_step = model.getStableTimeStep();
model.setTimeStep(time_step / 10.);
model.assembleMassLumped();
std::cout << model << std::endl;
/// boundary conditions
akantu::UInt nb_nodes = mesh.getNbNodes();
akantu::Real eps = 1e-16;
for (akantu::UInt i = 0; i < nb_nodes; ++i) {
model.getDisplacement().storage()[3 * i] =
model.getFEEngine().getMesh().getNodes().storage()[3 * i] / 100.;
if (model.getFEEngine().getMesh().getNodes().storage()[3 * i] <= eps) {
model.getBlockedDOFs().storage()[3 * i] = true;
}
if (model.getFEEngine().getMesh().getNodes().storage()[3 * i + 1] <= eps) {
model.getBlockedDOFs().storage()[3 * i + 1] = true;
}
}
model.setBaseName("cube3d");
model.addDumpField("displacement");
model.addDumpField("mass");
model.addDumpField("velocity");
model.addDumpField("acceleration");
model.addDumpField("external_force");
model.addDumpField("internal_force");
model.addDumpField("stress");
model.addDumpField("grad_u");
model.addDumpField("element_index_by_material");
model.dump();
std::ofstream energy;
energy.open("energy.csv");
energy << "id,epot,ekin,tot" << std::endl;
for (akantu::UInt s = 0; s < max_steps; ++s) {
model.solveStep();
epot = model.getEnergy("potential");
ekin = model.getEnergy("kinetic");
std::cerr << "passing step " << s << "/" << max_steps << std::endl;
energy << s << "," << epot << "," << ekin << "," << epot + ekin
<< std::endl;
if (s % 10 == 0)
model.dump();
}
energy.close();
akantu::finalize();
return EXIT_SUCCESS;
}
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