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rAKA/test/test_fe_engine/test_interpolate_bernoulli_beam_2.cc
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test_interpolate_bernoulli_beam_2.cc
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/**
* Copyright (©) 2011-2023 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 <cstdlib>
#include <fstream>
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "fe_engine.hh"
#include "fe_engine_template.hh"
#include "integrator_gauss.hh"
#include "mesh.hh"
#include "mesh_io.hh"
#include "mesh_io_msh.hh"
#include "shape_linked.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main() {
Mesh beams(2);
/* --------------------------------------------------------------------------
*/
// Defining the mesh
Array<Real> & nodes = const_cast<Array<Real> &>(beams.getNodes());
nodes.resize(4);
beams.addConnectivityType(_bernoulli_beam_2);
Array<UInt> & connectivity =
const_cast<Array<UInt> &>(beams.getConnectivity(_bernoulli_beam_2));
connectivity.resize(3);
for (Int i = 0; i < 4; ++i) {
nodes(i, 0) = (i + 1) * 2;
nodes(i, 1) = 1;
}
for (Int i = 0; i < 3; ++i) {
connectivity(i, 0) = i;
connectivity(i, 1) = i + 1;
}
akantu::MeshIOMSH mesh_io;
mesh_io.write("b_beam_2.msh", beams);
/* --------------------------------------------------------------------------
*/
// Interpolation
FEEngineTemplate<IntegratorGauss, ShapeLinked> * fem =
new FEEngineTemplate<IntegratorGauss, ShapeLinked>(beams, 2);
fem->initShapeFunctions();
Array<Real> displ_on_nodes(4, 3);
Array<Real> displ_on_quad(0, 3);
for (Int i = 0; i < 4; ++i) {
displ_on_nodes(i, 0) = (i + 1) * 2; // Definition of the displacement
displ_on_nodes(i, 1) = 0;
displ_on_nodes(i, 2) = 0;
}
fem->getShapeFunctions().interpolateOnControlPoints<_bernoulli_beam_2>(
displ_on_nodes, displ_on_quad, 3, _not_ghost, NULL, false, 0, 0, 0);
fem->getShapeFunctions().interpolateOnControlPoints<_bernoulli_beam_2>(
displ_on_nodes, displ_on_quad, 3, _not_ghost, NULL, false, 1, 1, 1);
fem->getShapeFunctions().interpolateOnControlPoints<_bernoulli_beam_2>(
displ_on_nodes, displ_on_quad, 3, _not_ghost, NULL, true, 2, 2, 1);
fem->getShapeFunctions().interpolateOnControlPoints<_bernoulli_beam_2>(
displ_on_nodes, displ_on_quad, 3, _not_ghost, NULL, false, 3, 2, 3);
fem->getShapeFunctions().interpolateOnControlPoints<_bernoulli_beam_2>(
displ_on_nodes, displ_on_quad, 3, _not_ghost, NULL, true, 4, 3, 3);
Real * don = displ_on_nodes.data();
Real * doq = displ_on_quad.data();
std::ofstream my_file("out.txt");
my_file << don << std::endl;
my_file << doq << std::endl;
return EXIT_SUCCESS;
}
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