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local_material_damage.hh
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/**
* @file local_material_damage.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @author Marion Estelle Chambart <marion.chambart@epfl.ch>
*
* @date creation: Fri Nov 26 2010
* @date last modification: Fri May 16 2014
*
* @brief Material isotropic elastic
*
* @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/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "material.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_LOCAL_MATERIAL_DAMAGE_HH__
#define __AKANTU_LOCAL_MATERIAL_DAMAGE_HH__
__BEGIN_AKANTU__
class LocalMaterialDamage : public Material {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
LocalMaterialDamage(SolidMechanicsModel & model, const ID & id = "");
virtual ~LocalMaterialDamage() {};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
void initMaterial();
/// constitutive law for all element of a type
void computeStress(ElementType el_type, GhostType ghost_type = _not_ghost);
/// constitutive law for a given quadrature point
inline void computeStressOnQuad(Matrix<Real> & grad_u,
Matrix<Real> & sigma,
Real & damage);
/// compute tangent stiffness
virtual void computeTangentStiffness(__attribute__ ((unused)) const ElementType & el_type,
__attribute__ ((unused)) Array<Real> & tangent_matrix,
__attribute__ ((unused)) GhostType ghost_type = _not_ghost) {};
/// compute the potential energy for all elements
void computePotentialEnergy(ElementType el_type, GhostType ghost_type = _not_ghost);
/// compute the potential energy for on element
inline void computePotentialEnergyOnQuad(Matrix<Real> & grad_u,
Matrix<Real> & sigma,
Real & epot);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/// compute the celerity of wave in the material
inline Real getCelerity(const Element & element) const;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(Damage, damage, Real);
private:
/// the young modulus
Real E;
/// Poisson coefficient
Real nu;
/// First Lamé coefficient
Real lambda;
/// Second Lamé coefficient (shear modulus)
Real mu;
/// resistance to damage
Real Yd;
/// damage threshold
Real Sd;
/// Bulk modulus
Real kpa;
/// damage internal variable
InternalField<Real> damage;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "local_material_damage_inline_impl.cc"
__END_AKANTU__
#endif /* __AKANTU_LOCAL_MATERIAL_DAMAGE_HH__ */

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