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test_fem.cc
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Fri, May 10, 16:11
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rAKA akantu
test_fem.cc
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/**
* @file test_fem.cc
* @author Nicolas Richart <nicolas.richart@epfl.ch>
* @date Mon Jul 19 10:55:49 2010
*
* @brief test of the fem class
*
* @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 <cstdlib>
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
#include "fem.hh"
#include "mesh.hh"
#include "mesh_io.hh"
#include "mesh_io_msh.hh"
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
MeshIOMSH
mesh_io
;
Mesh
my_mesh
(
1
);
mesh_io
.
read
(
"line1.msh"
,
my_mesh
);
FEM
*
fem
=
new
FEM
(
my_mesh
,
1
,
"my_fem"
);
fem
->
initShapeFunctions
();
std
::
cout
<<
*
fem
<<
std
::
endl
;
StaticMemory
*
st_mem
=
StaticMemory
::
getStaticMemory
();
std
::
cout
<<
*
st_mem
<<
std
::
endl
;
Vector
<
Real
>
const_val
(
fem
->
getMesh
().
getNbNodes
(),
2
,
"const_val"
);
Vector
<
Real
>
val_on_quad
(
0
,
2
,
"val_on_quad"
);
Vector
<
Real
>
grad_on_quad
(
0
,
2
,
"grad_on_quad"
);
Vector
<
Real
>
int_val_on_elem
(
0
,
2
,
"int_val_on_elem"
);
Vector
<
Real
>
val_on_nodes_per_elem
(
fem
->
getMesh
().
getNbElement
(
_segment_2
),
2
*
2
,
"val_on_nodes_per_elem"
);
Vector
<
Real
>
int_val_on_nodes_per_elem
(
0
,
2
*
2
,
"int_val_on_nodes_per_elem"
);
Vector
<
Real
>
assemble_val_on_nodes
(
0
,
2
,
"assemble_val_on_nodes"
);
const
Vector
<
Real
>
&
shapes
=
fem
->
getShapes
(
_segment_2
);
for
(
UInt
i
=
0
;
i
<
const_val
.
getSize
();
++
i
)
{
const_val
.
values
[
i
*
2
+
0
]
=
1.
;
const_val
.
values
[
i
*
2
+
1
]
=
2.
;
}
fem
->
interpolateOnQuadraturePoints
(
const_val
,
val_on_quad
,
2
,
_segment_2
);
std
::
cout
<<
const_val
<<
std
::
endl
;
std
::
cout
<<
val_on_quad
<<
std
::
endl
;
fem
->
gradientOnQuadraturePoints
(
const_val
,
grad_on_quad
,
2
,
_segment_2
);
std
::
cout
<<
grad_on_quad
<<
std
::
endl
;
fem
->
integrate
(
val_on_quad
,
int_val_on_elem
,
2
,
_segment_2
);
std
::
cout
<<
int_val_on_elem
<<
std
::
endl
;
for
(
UInt
el
=
0
;
el
<
shapes
.
getSize
();
++
el
)
{
val_on_nodes_per_elem
.
values
[
el
*
4
+
0
]
=
val_on_quad
.
values
[
el
*
2
+
0
]
*
shapes
.
values
[
el
*
2
+
0
];
val_on_nodes_per_elem
.
values
[
el
*
4
+
1
]
=
val_on_quad
.
values
[
el
*
2
+
1
]
*
shapes
.
values
[
el
*
2
+
0
];
val_on_nodes_per_elem
.
values
[
el
*
4
+
2
]
=
val_on_quad
.
values
[
el
*
2
+
0
]
*
shapes
.
values
[
el
*
2
+
1
];
val_on_nodes_per_elem
.
values
[
el
*
4
+
3
]
=
val_on_quad
.
values
[
el
*
2
+
1
]
*
shapes
.
values
[
el
*
2
+
1
];
}
std
::
cout
<<
val_on_nodes_per_elem
<<
std
::
endl
;
fem
->
integrate
(
val_on_nodes_per_elem
,
int_val_on_nodes_per_elem
,
4
,
_segment_2
);
std
::
cout
<<
int_val_on_nodes_per_elem
<<
std
::
endl
;
fem
->
assembleVector
(
int_val_on_nodes_per_elem
,
assemble_val_on_nodes
,
2
,
_segment_2
);
std
::
cout
<<
assemble_val_on_nodes
<<
std
::
endl
;
delete
fem
;
finalize
();
return
EXIT_SUCCESS
;
}
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