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rAKA/test/test_fem/test_gradient_bernoulli_beam_2.cc
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test_gradient_bernoulli_beam_2.cc
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/**
* @file test_gradient_bernoulli_beam_2.cc
*
* @author Fabian Barras <fabian.barras@epfl.ch>
*
* @date Fri Jul 15 19:41:58 2011
*
* @brief Test of the gradient on the type _bernoulli_beam_2
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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 <cstdlib>
#include <fstream>
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "fe_engine.hh"
#include "integrator_gauss.hh"
#include "shape_linked.hh"
/* -------------------------------------------------------------------------- */
using namespace akantu;
int main(int argc, char *argv[]){
Array<Real> displ_on_nodes;
Array<Real> grad_on_quad;
UInt k=0;
displ_on_nodes=(2,0,0,4,0,0,6,0,0,8,0,0); // The displacement fields to interpolate
UInt size =displ_on_nodes.getSize();
// The gradient is only defined for du/dx and -d(dv)/dx^2 used in the definition of N and M stresses.
while (k<size) {
gradientOnControlPoints(displ_on_nodes,grad_on_quad,0,k,k,
size,false,_bernoulli_beam_2);
++k;
gradientOnControlPoints(displ_on_nodes, grad_on_quad,1,(k-1),k,
size,false,_bernoulli_beam_2);
gradientOnControlPoints(displ_on_nodes, grad_on_quad,2,k,k,
size,true,_bernoulli_beam_2);
}
std::ofstream my_file("out.txt");
my_file << displ_on_nodes << std::endl;
my_file << grad_on_quad << std::endl;
return EXIT_SUCCESS;
}
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