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material_linear_isotropic_hardening.hh
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material_linear_isotropic_hardening.hh
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/**
* @file material_linear_isotropic_hardening.hh
*
* @author Ramin Aghababaei <ramin.aghababaei@epfl.ch>
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Lucas Frerot <lucas.frerot@epfl.ch>
* @author Benjamin Paccaud <benjamin.paccaud@epfl.ch>
* @author Daniel Pino Muñoz <daniel.pinomunoz@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Jun 18 2010
* @date last modification: Sat Dec 02 2017
*
* @brief Specialization of the material class for isotropic finite deformation
* linear hardening plasticity
*
* @section LICENSE
*
* Copyright (©) 2010-2018 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 "aka_common.hh"
#include "aka_voigthelper.hh"
#include "material_plastic.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_MATERIAL_LINEAR_ISOTROPIC_HARDENING_HH__
#define __AKANTU_MATERIAL_LINEAR_ISOTROPIC_HARDENING_HH__
namespace akantu {
/**
* Material plastic with a linear evolution of the yielding stress
*/
template <UInt spatial_dimension>
class MaterialLinearIsotropicHardening
: public MaterialPlastic<spatial_dimension> {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
MaterialLinearIsotropicHardening(SolidMechanicsModel & model,
const ID & id = "");
MaterialLinearIsotropicHardening(SolidMechanicsModel & model, UInt dim,
const Mesh & mesh, FEEngine & fe_engine,
const ID & id = "");
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// constitutive law for all element of a type
void computeStress(ElementType el_type,
GhostType ghost_type = _not_ghost) override;
/// compute the tangent stiffness matrix for an element type
void computeTangentModuli(const ElementType & el_type,
Array<Real> & tangent_matrix,
GhostType ghost_type = _not_ghost) override;
protected:
/// Infinitesimal deformations
inline void computeStressOnQuad(
const Matrix<Real> & grad_u, const Matrix<Real> & previous_grad_u,
Matrix<Real> & sigma, const Matrix<Real> & previous_sigma,
Matrix<Real> & inelas_strain, const Matrix<Real> & previous_inelas_strain,
Real & iso_hardening, const Real & previous_iso_hardening,
const Real & sigma_th, const Real & previous_sigma_th);
/// Finite deformations
inline void computeStressOnQuad(
const Matrix<Real> & grad_u, const Matrix<Real> & previous_grad_u,
Matrix<Real> & sigma, const Matrix<Real> & previous_sigma,
Matrix<Real> & inelas_strain, const Matrix<Real> & previous_inelas_strain,
Real & iso_hardening, const Real & previous_iso_hardening,
const Real & sigma_th, const Real & previous_sigma_th,
const Matrix<Real> & F_tensor);
inline void computeTangentModuliOnQuad(
Matrix<Real> & tangent, const Matrix<Real> & grad_u,
const Matrix<Real> & previous_grad_u, const Matrix<Real> & sigma_tensor,
const Matrix<Real> & previous_sigma_tensor,
const Real & iso_hardening) const;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
} // namespace akantu
#include "material_linear_isotropic_hardening_inline_impl.cc"
#endif /* __AKANTU_MATERIAL_LINEAR_ISOTROPIC_HARDENING_HH__ */

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