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rAKA/src/model/solid_mechanics/materials/material_reinforcement_inline_impl.cc
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material_reinforcement_inline_impl.cc
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/**
* @file material_reinforcement_inline_impl.cc
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @date creation: Thu Mar 12 2015
* @date last modification: Thu Mar 12 2015
*
* @brief Reinforcement material
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 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/>.
*
*/
/* -------------------------------------------------------------------------- */
template<UInt d>
inline void MaterialReinforcement<d>::computeDirectingCosinesOnQuad(const Matrix<Real> & nodes,
Matrix<Real> & cosines) {
AKANTU_DEBUG_IN();
AKANTU_DEBUG_ASSERT(nodes.cols() == 2, "Higher order reinforcement elements not implemented");
const Vector<Real> & a = nodes(0), b = nodes(1);
cosines.clear();
Real sq_length = 0.;
for (UInt i = 0 ; i < d ; i++) {
sq_length += Math::pow<2, Real>(b(i) - a(i));
}
// Fill the first row of cosine matrix
for (UInt i = 0 ; i < d ; i++) {
cosines(0, i) = Math::pow<2, Real>(b(i) - a(i)) / sq_length;
}
AKANTU_DEBUG_OUT();
}
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