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local_material_damage.cc
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Sun, Aug 25, 14:49
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Tue, Aug 27, 14:49 (2 d)
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rAKA akantu
local_material_damage.cc
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/**
* @file local_material_damage.cc
*
* @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: Tue Jun 24 2014
*
* @brief Specialization of the material class for the damage material
*
* @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 "local_material_damage.hh"
#include "solid_mechanics_model.hh"
__BEGIN_AKANTU__
/* -------------------------------------------------------------------------- */
LocalMaterialDamage
::
LocalMaterialDamage
(
SolidMechanicsModel
&
model
,
const
ID
&
id
)
:
Material
(
model
,
id
),
damage
(
"damage"
,
*
this
)
{
AKANTU_DEBUG_IN
();
this
->
registerParam
(
"E"
,
E
,
0.
,
_pat_parsable
,
"Young's modulus"
);
this
->
registerParam
(
"nu"
,
nu
,
0.5
,
_pat_parsable
,
"Poisson's ratio"
);
this
->
registerParam
(
"lambda"
,
lambda
,
_pat_readable
,
"First Lamé coefficient"
);
this
->
registerParam
(
"mu"
,
mu
,
_pat_readable
,
"Second Lamé coefficient"
);
this
->
registerParam
(
"kapa"
,
kpa
,
_pat_readable
,
"Bulk coefficient"
);
this
->
registerParam
(
"Yd"
,
Yd
,
50.
,
_pat_parsmod
);
this
->
registerParam
(
"Sd"
,
Sd
,
5000.
,
_pat_parsmod
);
damage
.
initialize
(
1
);
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
LocalMaterialDamage
::
initMaterial
()
{
AKANTU_DEBUG_IN
();
Material
::
initMaterial
();
lambda
=
nu
*
E
/
((
1
+
nu
)
*
(
1
-
2
*
nu
));
mu
=
E
/
(
2
*
(
1
+
nu
));
kpa
=
lambda
+
2.
/
3.
*
mu
;
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
LocalMaterialDamage
::
computeStress
(
ElementType
el_type
,
GhostType
ghost_type
)
{
AKANTU_DEBUG_IN
();
Real
*
dam
=
damage
(
el_type
,
ghost_type
).
storage
();
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN
(
el_type
,
ghost_type
);
computeStressOnQuad
(
grad_u
,
sigma
,
*
dam
);
++
dam
;
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END
;
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
LocalMaterialDamage
::
computePotentialEnergy
(
ElementType
el_type
,
GhostType
ghost_type
)
{
AKANTU_DEBUG_IN
();
Material
::
computePotentialEnergy
(
el_type
,
ghost_type
);
if
(
ghost_type
!=
_not_ghost
)
return
;
Real
*
epot
=
potential_energy
(
el_type
).
storage
();
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN
(
el_type
,
ghost_type
);
computePotentialEnergyOnQuad
(
grad_u
,
sigma
,
*
epot
);
epot
++
;
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END
;
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
__END_AKANTU__
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