Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F79898353
local_material_damage.cc
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Wed, Aug 28, 21:04
Size
3 KB
Mime Type
text/x-c
Expires
Fri, Aug 30, 21:04 (1 d, 23 h)
Engine
blob
Format
Raw Data
Handle
20025116
Attached To
rAKA akantu
local_material_damage.cc
View Options
/**
* @file local_material_damage.cc
*
* @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 Jan 18 2016
*
* @brief Specialization of the material class for the damage material
*
*
* 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 "local_material_damage.hh"
#include "solid_mechanics_model.hh"
namespace
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
)
{
AKANTU_DEBUG_IN
();
Real
*
epot
=
potential_energy
(
el_type
).
storage
();
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_BEGIN
(
el_type
,
_not_ghost
);
computePotentialEnergyOnQuad
(
grad_u
,
sigma
,
*
epot
);
epot
++
;
MATERIAL_STRESS_QUADRATURE_POINT_LOOP_END
;
AKANTU_DEBUG_OUT
();
}
static
bool
material_is_alocated_local_damage
[[
gnu
::
unused
]]
=
MaterialFactory
::
getInstance
().
registerAllocator
(
"local_damage"
,
[](
UInt
,
const
ID
&
,
SolidMechanicsModel
&
model
,
const
ID
&
id
)
->
std
::
unique_ptr
<
Material
>
{
return
std
::
make_unique
<
LocalMaterialDamage
>
(
model
,
id
);
});
}
// namespace akantu
Event Timeline
Log In to Comment