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material_hyper_elastic.hh
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/**
* file material_hyper_elastic.hh
*
* @author Till Junge <till.junge@epfl.ch>
*
* @date 01 May 2017
*
* @brief Hyperelastic material law as used in Section 4 of
* de Geus et al. / Comput. Methods in Appl. Mech. Engrg.
* 318, (2017), 412–430 https://doi.org/10.1016/j.cma.2016.12.032
*
* @section LICENCE
*
* Copyright (C) 2017 Till Junge
*
* µSpectre is free software; you can redistribute it and/or
* modify it under the terms of the GNU 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 General Public License
* along with GNU Emacs; see the file COPYING. If not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "material.hh"
namespace muSpectre {
template<Dim_t spatial_dimension, Dim_t material_dimension>
class MaterialHyperElastic:
public MaterialBase<spatial_dimension, material_dimension> {
public:
using parent = MaterialBase<spatial_dimension, material_dimension>;
using SecondArray = typename parent::SecondArray;
using FourthArray = typename parent::FourthArray;
//! Default constructor
MaterialHyperElastic(Real Young, Real Poisson);
void compute_First_Piola_Kirchhoff_stress(const SecondArray & F,
SecondArray & P) override final;
void compute_tangent_moduli(const SecondArray & F,
FourthArray & K) override final;
protected:
Real Young;
Real Poisson;
Real lambda;
Real mu;
private:
};
} // muSpectre

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