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material_linear_elastic4.cc
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material_linear_elastic4.cc
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/**
* @file material_linear_elastic4.cc
*
* @author Richard Leute <richard.leute@imtek.uni-freiburg.de
*
* @date 15 March 2018
*
* @brief linear elastic material with distribution of stiffness properties.
* In difference to material_linear_elastic3 two Lame constants are
* stored per pixel instead of the whole elastic matrix C.
* Uses the MaterialMuSpectre facilities to keep it simple.
*
* Copyright © 2018 Till Junge
*
* µSpectre 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, or (at
* your option) any later version.
*
* µSpectre 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
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with µSpectre; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* * Boston, MA 02111-1307, USA.
*
* Additional permission under GNU GPL version 3 section 7
*
* If you modify this Program, or any covered work, by linking or combining it
* with proprietary FFT implementations or numerical libraries, containing parts
* covered by the terms of those libraries' licenses, the licensors of this
* Program grant you additional permission to convey the resulting work.
*/
#include "materials/material_linear_elastic4.hh"
namespace muSpectre {
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
MaterialLinearElastic4<DimS, DimM>::MaterialLinearElastic4(std::string name)
: Parent{name}, lambda_field{make_field<Field_t>(
"local first Lame constant", this->internal_fields)},
mu_field{
make_field<Field_t>("local second Lame constant(shear modulus)",
this->internal_fields)},
internal_variables{lambda_field.get_const_map(),
mu_field.get_const_map()} {}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
void MaterialLinearElastic4<DimS, DimM>::
add_pixel(const Ccoord_t<DimS> & /*pixel*/) {
throw std::runtime_error
("This material needs pixels with Youngs modulus and Poisson ratio.");
}
/* ---------------------------------------------------------------------- */
template <Dim_t DimS, Dim_t DimM>
void
MaterialLinearElastic4<DimS, DimM>::add_pixel(const Ccoord_t<DimS> & pixel,
const Real & Young_modulus,
const Real & Poisson_ratio) {
this->internal_fields.add_pixel(pixel);
// store the first(lambda) and second(mu) Lame constant in the field
Real lambda = Hooke::compute_lambda(Young_modulus, Poisson_ratio);
Real mu = Hooke::compute_mu(Young_modulus, Poisson_ratio);
this->lambda_field.push_back(lambda);
this->mu_field.push_back(mu);
}
template class MaterialLinearElastic4<twoD, twoD>;
template class MaterialLinearElastic4<twoD, threeD>;
template class MaterialLinearElastic4<threeD, threeD>;
} // namespace muSpectre

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