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local_material_damage.hh
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rAKA akantu
local_material_damage.hh
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/**
* @file local_material_damage.hh
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Marion Estelle Chambart <marion.chambart@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Mon Aug 10 2015
* @date last modification: Mon Jan 18 2016
*
* @brief Material isotropic elastic
*
* @section LICENSE
*
* Copyright (©) 2015 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__
namespace
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 the fastest 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
;
};
}
// akantu
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "local_material_damage_inline_impl.hh"
#endif
/* __AKANTU_LOCAL_MATERIAL_DAMAGE_HH__ */
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