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material_anisotropic_damage.hh
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Sun, Jun 9, 14:59

material_anisotropic_damage.hh
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/**
* @file material_anisotropic_damage.hh
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Sat Feb 03 2018
* @date last modification: Fri Jul 24 2020
*
* @brief Base class for anisotropic damage materials
*
*
* @section LICENSE
*
* Copyright (©) 2016-2021 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 "material_elastic.hh"
/* -------------------------------------------------------------------------- */
#ifndef AKANTU_MATERIAL_ANISOTROPIC_DAMAGE_HH_
#define AKANTU_MATERIAL_ANISOTROPIC_DAMAGE_HH_
namespace akantu {
template <UInt dim, template <UInt> class EquivalentStrain,
template <UInt> class DamageThreshold,
template <UInt> class Parent = MaterialElastic>
class MaterialAnisotropicDamage : public Parent<dim> {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
MaterialAnisotropicDamage(SolidMechanicsModel & model, const ID & id = "");
~MaterialAnisotropicDamage() override = default;
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
void computeStress(ElementType el_type, GhostType ghost_type) override;
private:
void damageStress(Matrix<double> & sigma, const Matrix<double> & sigma_el,
const Matrix<double> & D, Real TrD);
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private:
Real Dc{0.99};
/// damage internal variable
InternalField<Real> damage;
/// elastic stress
InternalField<Real> elastic_stress;
/// equivalent strain
InternalField<Real> equivalent_strain;
/// trace of the damageThreshold
InternalField<Real> trace_damage;
/// damage criteria
EquivalentStrain<dim> equivalent_strain_function;
/// damage evolution
DamageThreshold<dim> damage_threshold_function;
};
} // namespace akantu
#include "material_anisotropic_damage_tmpl.hh"
#endif /* AKANTU_MATERIAL_ANISOTROPIC_DAMAGE_HH_ */

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