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rAKA/examples/boundary_conditions/predefined_BC/plate.cc
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plate.cc
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/**
* @file plate.cc
*
* @author Dana Christen <dana.christen@epfl.ch>
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Wed Dec 16 2015
*
* @brief boundary condition example
*
* @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"
/* -------------------------------------------------------------------------- */
#include <iostream>
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main(int argc, char *argv[]) {
initialize("material.dat", argc, argv);
//Do I need to define the element type?
UInt spatial_dimension = 2;
UInt max_steps = 3000;
Mesh mesh(spatial_dimension);
mesh.read("square.msh");
mesh.createGroupsFromMeshData<std::string>("physical_names");
SolidMechanicsModel model(mesh);
/// model initialization
model.initFull();
std::cout << model.getMaterial(0) << std::endl;
model.assembleMassLumped();
/// Dirichlet boundary conditions
model.applyBC(BC::Dirichlet::FixedValue(0.0, _x), "Fixed_x");
model.applyBC(BC::Dirichlet::FixedValue(0.0, _y), "Fixed_y");
model.updateResidual();
model.setBaseName("plate");
model.addDumpFieldVector("displacement");
model.addDumpField("blocked_dofs");
model.addDumpField("force" );
model.addDumpField("residual" );
model.dump();
Real time_step = model.getStableTimeStep() * .8;
model.setTimeStep(time_step);
Vector<Real> traction(2);
for(UInt s = 1; s <= max_steps; ++s) {
if(s % 100 == 0)
std::cout << "passing step " << s << "/" << max_steps << std::endl;
// Neumann boundary condition
traction(0) = s*0.1;
traction(1) = 0.0;
model.applyBC(BC::Neumann::FromTraction(traction), "Traction");
model.explicitPred();
model.updateResidual();
model.updateAcceleration();
model.explicitCorr();
if(s % 10 == 0)
model.dump();
}
finalize();
return EXIT_SUCCESS;
}
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