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solid_contact_explicit.cc
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Thu, Aug 15, 03:17

solid_contact_explicit.cc
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/**
* @file contact_mechanics_penalty.cc
*
* @author Mohit Pundir <mohit.pundir@epfl.ch>
*
* @date creation: Mon Jan 24 2019
* @date last modification: Mon Jan 24 2019
*
* @brief contact mechanics model with penalty resolution
*
* @section LICENSE
*
* Copyright (©) 2010-2018 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 "non_linear_solver.hh"
#include "contact_mechanics_model.hh"
#include "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main(int argc, char *argv[]) {
initialize("material.dat", argc, argv);
const UInt spatial_dimension = 2;
Mesh mesh(spatial_dimension);
mesh.read("hertz_2d.msh");
SolidMechanicsModel solid(mesh);
solid.initFull(_analysis_method = _static);
/*solid.setBaseName("static");
solid.addDumpFieldVector("displacement");
solid.addDumpField("blocked_dofs");
solid.addDumpField("external_force");
solid.addDumpField("internal_force");*/
solid.applyBC(BC::Dirichlet::FixedValue(0.0, _x), "top");
solid.applyBC(BC::Dirichlet::IncrementValue(-0.01, _y), "top");
solid.applyBC(BC::Dirichlet::FixedValue(0.0, _x), "bottom");
solid.applyBC(BC::Dirichlet::FixedValue(0.0, _y), "bottom");
/*
auto & solver = solid.getNonLinearSolver();
solver.set("max_iterations", 100);
solver.set("threshold", 1e-12);
solver.set("convergence_type", _scc_residual);
*/
solid.solveStep();
//solid.dump();
auto current_position = solid.getCurrentPosition();
ContactMechanicsModel contact(mesh, current_position);
contact.initFull(_analysis_method = _explicit_contact);
contact.setBaseName("contact-penalty");
contact.addDumpField("contact_force");
contact.addDumpField("blocked_dofs");
contact.addDumpField("gaps");
contact.search();
contact.assembleInternalForces();
//contact.dump();
contact.setBaseNameToDumper("contact_mechanics", "solid");
contact.addDumpFieldVectorToDumper("contact_mechanics", "displacement");
contact.addDumpFieldToDumper("contact_mechanics", "external_force");
Array<Real> & contact_force = contact.getInternalForce();
Array<Real> & external_force = solid.getExternalForce();
for (auto && values: zip(make_view(external_force),
make_view(contact_force)) ) {
auto & ext_f = std::get<0>(values);
auto & cont_f = std::get<1>(values);
ext_f = cont_f;
}
for (auto && values: zip(make_view(external_force),
make_view(contact_force)) ) {
auto ext_f = std::get<0>(values);
auto cont_f = std::get<1>(values);
std::cerr << ext_f << " " << cont_f << std::endl;
}
//solid.solveStep();
contact.dump();
finalize();
return EXIT_SUCCESS;
}

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