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material_orthotropic_damage.hh
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material_orthotropic_damage.hh
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/**
* @file material_orthotropic_damage.hh
* @author Aurelia Cuba Ramos <aurelia.cubaramos@epfl.ch>
* @date Sun Mar 8 12:49:56 2015
*
* @brief Material for orthotropic damage
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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_elastic.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_MATERIAL_ORTHOTROPIC_DAMAGE_HH__
#define __AKANTU_MATERIAL_ORTHOTROPIC_DAMAGE_HH__
__BEGIN_AKANTU__
template<UInt spatial_dimension, template<UInt> class Parent = MaterialElastic>
class MaterialOrthotropicDamage : public Parent<spatial_dimension> {
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public:
MaterialOrthotropicDamage(SolidMechanicsModel & model, const ID & id = "");
virtual ~MaterialOrthotropicDamage() {};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
virtual void initMaterial();
/// compute the tangent stiffness matrix for an element type
virtual void computeTangentModuli(const ElementType & el_type,
Array<Real> & tangent_matrix,
GhostType ghost_type = _not_ghost);
protected:
/// update the dissipated energy, must be called after the stress have been computed
virtual void updateEnergies(ElementType el_type, GhostType ghost_type);
/// compute the tangent stiffness matrix for a given quadrature point
inline void computeTangentModuliOnQuad(Matrix<Real> & tangent,
const Matrix<Real> C,
const Matrix<Real> & dam,
const Matrix<Real> & dam_directions,
Matrix<Real> & O_prime,
Matrix<Real> & S_prime,
Matrix<Real> & O,
Matrix<Real> & S,
Matrix<Real> & rotation_tmp);
inline void computeDamageAndStressOnQuad(Matrix<Real> & sigma, Matrix<Real> & one_minus_D, Matrix<Real> & root_one_minus_D, Matrix<Real> & damage, Matrix<Real> & first_term, Matrix<Real> & third_term);
/// rotate a Matrix of size dim*dim into the coordinate system of the FE computation
inline void rotateIntoComputationFrame(const Matrix<Real> & to_rotate,
Matrix<Real> & rotated,
const Matrix<Real> & damage_directions, Matrix<Real> & rotation_tmp);
/// rotate a Matrix of size dim*dim into the coordinate system of the damage
inline void rotateIntoNewFrame(const Matrix<Real> & to_rotate,
Matrix<Real> & rotated,
const Matrix<Real> & damage_directions,
Matrix<Real> & rotation_tmp);
/// compute (1-D)
inline void computeOneMinusD(Matrix<Real> & one_minus_D, const Matrix<Real> & damage);
/// compute (1-D)^(1/2)
inline void computeSqrtOneMinusD(const Matrix<Real> & one_minus_D, Matrix<Real> & sqrt_one_minus_D);
/* ------------------------------------------------------------------------ */
/* DataAccessor inherited members */
/* ------------------------------------------------------------------------ */
public:
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public:
/// give the dissipated energy for the time step
Real getDissipatedEnergy() const;
// virtual Real getEnergy(std::string type);
// virtual Real getEnergy(std::string energy_id, ElementType type, UInt index) {
// return Parent<spatial_dimension>::getEnergy(energy_id, type, index);
// };
AKANTU_GET_MACRO_NOT_CONST(Damage, damage, ElementTypeMapArray<Real> &);
AKANTU_GET_MACRO(Damage, damage, const ElementTypeMapArray<Real> &);
AKANTU_GET_MACRO_BY_ELEMENT_TYPE_CONST(Damage, damage, Real)
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
/// damage internal variable
InternalField<Real> damage;
/// dissipated energy
InternalField<Real> dissipated_energy;
/// contain the current value of @f$ \int_0^{\epsilon}\sigma(\omega)d\omega @f$ the dissipated energy
InternalField<Real> int_sigma;
/// direction vectors for the damage frame
InternalField<Real> damage_dir_vecs;
Real eta;
/// maximum damage value
Real max_damage;
};
__END_AKANTU__
#include "material_orthotropic_damage_tmpl.hh"
#endif /* __AKANTU_MATERIAL_ORTHOTROPIC_DAMAGE_HH__ */

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