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test_material_FE2.cc
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Thu, May 16, 04:22

test_material_FE2.cc
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/**
* @file test_material_FE2.cc
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
* @date Sun Jan 31 12:27:02 2016
*
* @brief test the material FE2
*
*
* Copyright (©) 2010-2011 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 "communicator.hh"
#include "material_FE2.hh"
#include "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
/* -------------------------------------------------------------------------- */
/* Main */
/* -------------------------------------------------------------------------- */
int main(int argc, char * argv[]) {
debug::setDebugLevel(dblWarning);
initialize("material.dat", argc, argv);
const auto & comm = Communicator::getStaticCommunicator();
Int prank = comm.whoAmI();
/// input parameters for the simulation
const Int spatial_dimension = 2;
const ParserSection & parser = getUserParser();
std::string mesh_file = parser.getParameter("mesh_file");
Matrix<Real> prestrain_increment = parser.getParameter("prestrain_increment");
UInt total_steps = parser.getParameter("total_steps");
Mesh mesh(spatial_dimension);
if (prank == 0) {
mesh.read(mesh_file);
}
mesh.distribute();
/// model creation
SolidMechanicsModel model(mesh);
/// set the material selector
auto mat_selector = std::make_shared<MaterialSelector>();
mat_selector->setFallback(3);
model.setMaterialSelector(mat_selector);
model.initFull(SolidMechanicsModelOptions(_static));
/* --------------------------------------------------------------------------
*/
/// boundary conditions
mesh.createGroupsFromMeshData<std::string>(
"physical_names"); // creates groups from mesh names
model.applyBC(BC::Dirichlet::FixedValue(0, _x), "bottom");
model.applyBC(BC::Dirichlet::FixedValue(0, _y), "bottom");
// model.applyBC(BC::Dirichlet::FixedValue(1.e-2, _y), "top");
model.setBaseName("macro_mesh");
model.addDumpFieldVector("displacement");
model.addDumpField("stress");
model.addDumpField("grad_u");
model.addDumpField("eigen_grad_u");
model.addDumpField("blocked_dofs");
model.addDumpField("material_index");
model.addDumpField("material_stiffness");
model.dump();
/// solve system
model.assembleStiffnessMatrix();
std::cout << "first solve step" << std::endl;
model.solveStep();
std::cout << "second solve step" << std::endl;
model.solveStep();
std::cout << "finished solve steps" << std::endl;
/// simulate the advancement of the reaction
MaterialFE2<spatial_dimension> & mat =
dynamic_cast<MaterialFE2<spatial_dimension> &>(
model.getMaterial("FE2_mat"));
Matrix<Real> current_prestrain(spatial_dimension, spatial_dimension, 0.);
for (Int i = 0; i < total_steps; ++i) {
model.dump();
current_prestrain += prestrain_increment;
mat.advanceASR(current_prestrain);
model.dump();
/// solve for new displacement at the macro-scale
model.solveStep();
}
model.dump();
finalize();
return EXIT_SUCCESS;
}

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