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rCADDMESH/third-party/akantu/examples/static/static.cc
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static.cc
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/**
* @file static.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Mon Jan 18 2016
*
* @brief This code refers to the implicit static example from the user manual
*
* @section LICENSE
*
* Copyright (©) 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"
/* -------------------------------------------------------------------------- */
using namespace akantu;
#define bar_length 0.01
#define bar_height 0.01
/* -------------------------------------------------------------------------- */
int main(int argc, char * argv[]) {
initialize("material.dat", argc, argv);
const UInt spatial_dimension = 2;
Mesh mesh(spatial_dimension);
mesh.read("square.msh");
mesh.createGroupsFromMeshData<std::string>("physical_names");
SolidMechanicsModel model(mesh);
/// model initialization
model.initFull(SolidMechanicsModelOptions(_static));
model.setBaseName("static");
model.addDumpFieldVector("displacement");
model.addDumpField("force");
model.addDumpField("residual");
model.addDumpField("grad_u");
/// Dirichlet boundary conditions
model.applyBC(BC::Dirichlet::FixedValue(0.0, _x), "Fixed_x");
model.applyBC(BC::Dirichlet::FixedValue(0.0, _y), "Fixed_y");
model.applyBC(BC::Dirichlet::FixedValue(0.0001, _y), "Traction");
model.dump();
model.assembleStiffnessMatrix();
model.getStiffnessMatrix().saveMatrix("stiffness.mtx");
bool converged =
model.solveStep<_scm_newton_raphson_tangent_modified, _scc_increment>(
1e-4, 2);
if (!converged)
AKANTU_DEBUG_ERROR("Did not converged in 1 step");
model.dump();
finalize();
return EXIT_SUCCESS;
}
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