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rAKA/test/test_mesh_utils/test_mesh_periodic/test_periodic_mass.cc
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test_periodic_mass.cc
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/**
* Copyright (©) 2010-2024 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 "aka_common.hh"
#include "mesh.hh"
#include "mesh_utils.hh"
#include "solid_mechanics_model.hh"
#include "dumper_iohelper_paraview.hh"
#include <gtest/gtest.h>
using namespace akantu;
TEST(TestPeriodicMass, UniformMass) {
const size_t dim = 3;
debug::setDebugLevel(dblError);
getStaticParser().parse("material.dat");
const Communicator & comm = Communicator::getStaticCommunicator();
Int psize = comm.getNbProc();
Int prank = comm.whoAmI();
AKANTU_DEBUG_INFO("Running on " << psize << " processors");
AKANTU_DEBUG_INFO("This is processor " << prank);
// Create periodic mesh
auto mesh = std::make_unique<Mesh>(dim);
if (prank == 0) {
mesh->read("cube.msh");
}
mesh->distribute();
mesh->makePeriodic(_x);
mesh->makePeriodic(_y);
mesh->makePeriodic(_z);
// Initialize model with lumped mass
auto model = std::make_unique<SolidMechanicsModel>(*mesh);
model->initFull(_analysis_method = _explicit_lumped_mass);
model->assembleMassLumped();
// Check that all the masses are the same
const auto & masses = model->getMass();
auto reference_mass = masses[0];
for (auto & masses_i : make_view(masses, dim)) {
for (auto & mass : masses_i) {
EXPECT_NEAR(0., (mass - reference_mass) / reference_mass, 2e-11);
}
}
// Dump mass
auto dumper = std::make_shared<DumperParaview>("periodic-mass", "./paraview");
mesh->registerExternalDumper(dumper, "periodic-mass", true);
mesh->addDumpMesh(*mesh);
// Gather info on which nodes are masters and slaves
mesh->addDumpFieldExternalToDumper("periodic-mass", "mass", masses);
mesh->dump();
}
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