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test_cohesive_intrinsic_tetrahedron_fragmentation.cc
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test_cohesive_intrinsic_tetrahedron_fragmentation.cc
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/**
* @file test_cohesive_intrinsic_tetrahedron_fragmentation.cc
*
* @author Marco Vocialta <marco.vocialta@epfl.ch>
*
* @date creation: Wed Oct 09 2013
* @date last modification: Mon Dec 18 2017
*
* @brief Test for cohesive elements
*
*
* Copyright (©) 2014-2018 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 <fstream>
#include <iostream>
#include <limits>
/* -------------------------------------------------------------------------- */
#include "solid_mechanics_model_cohesive.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main(int argc, char * argv[]) {
initialize("material.dat", argc, argv);
// debug::setDebugLevel(dblDump);
ElementType type = _tetrahedron_10;
const UInt spatial_dimension = 3;
const UInt max_steps = 100;
Mesh mesh(spatial_dimension);
mesh.read("tetrahedron_full.msh");
SolidMechanicsModelCohesive model(mesh);
/// model initialization
model.initFull();
Real time_step = model.getStableTimeStep() * 0.8;
model.setTimeStep(time_step);
// std::cout << "Time step: " << time_step << std::endl;
model.assembleMassLumped();
model.assembleInternalForces();
model.setBaseName("intrinsic_tetrahedron_fragmentation");
model.addDumpFieldVector("displacement");
model.addDumpField("velocity");
model.addDumpField("acceleration");
model.addDumpField("internal_force");
model.addDumpField("stress");
model.addDumpField("grad_u");
model.setBaseNameToDumper("cohesive elements",
"cohesive_elements_tetrahedron_fragmentation");
model.addDumpFieldVectorToDumper("cohesive elements", "displacement");
model.addDumpFieldToDumper("cohesive elements", "damage");
model.dump();
model.dump("cohesive elements");
/// update displacement
UInt nb_element = mesh.getNbElement(type);
UInt nb_nodes = mesh.getNbNodes();
UInt nb_nodes_per_element = mesh.getNbNodesPerElement(type);
Vector<Real> bary(spatial_dimension);
const Array<UInt> & connectivity = mesh.getConnectivity(type);
Array<Real> & displacement = model.getDisplacement();
Array<bool> update(nb_nodes);
for (UInt s = 0; s < max_steps; ++s) {
Real increment = s / 10.;
update.zero();
for (UInt el = 0; el < nb_element; ++el) {
mesh.getBarycenter({type, el, _not_ghost}, bary);
for (UInt n = 0; n < nb_nodes_per_element; ++n) {
UInt node = connectivity(el, n);
if (!update(node)) {
for (UInt dim = 0; dim < spatial_dimension; ++dim) {
displacement(node, dim) = increment * bary(dim);
update(node) = true;
}
}
}
}
if (s % 10 == 0) {
model.dump();
model.dump("cohesive elements");
}
}
if (nb_nodes != nb_element * Mesh::getNbNodesPerElement(type)) {
std::cout << "Wrong number of nodes" << std::endl;
finalize();
return EXIT_FAILURE;
}
finalize();
std::cout << "OK: test_cohesive_intrinsic_tetrahedron was passed!"
<< std::endl;
return EXIT_SUCCESS;
}

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