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test_assembling_K_cohe_elements.cc
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Thu, Sep 26, 10:41
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rAKA akantu
test_assembling_K_cohe_elements.cc
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/**
* @file matrix_assembling_cohesive_elements.cc
*
* @author Mauro Corrado
*
* @date creation: Thu April 30 2015
*
* @brief Test to check the correct matrix assembling for cohesive elements
* with degenerated nodes
*
* @section LICENSE
*
* Copyright (©) 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 <limits>
#include <fstream>
#include <iostream>
/* -------------------------------------------------------------------------- */
#include "solid_mechanics_model_cohesive.hh"
#include "material_cohesive.hh"
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
initialize
(
"material.dat"
,
argc
,
argv
);
debug
::
setDebugLevel
(
dblWarning
);
const
UInt
spatial_dimension
=
2
;
Mesh
mesh
(
spatial_dimension
);
mesh
.
read
(
"quadrangle.msh"
);
SolidMechanicsModelCohesive
model
(
mesh
);
/// model initialization
model
.
initFull
(
SolidMechanicsModelCohesiveOptions
(
_static
,
true
));
// CohesiveElementInserter inserter(mesh);
model
.
limitInsertion
(
_y
,
-
0.001
,
0.001
);
model
.
updateAutomaticInsertion
();
/// boundary conditions
Array
<
bool
>
&
boundary
=
model
.
getBlockedDOFs
();
Array
<
Real
>
&
position
=
mesh
.
getNodes
();
Array
<
Real
>
&
displacement
=
model
.
getDisplacement
();
for
(
UInt
n
=
0
;
n
<
mesh
.
getNbNodes
();
++
n
)
{
if
(
position
(
n
,
1
)
<
-
0.99
){
boundary
(
n
,
1
)
=
true
;
boundary
(
n
,
0
)
=
true
;
}
if
(
position
(
n
,
1
)
>
0.99
&&
position
(
n
,
0
)
<
-
0.99
)
boundary
(
n
,
1
)
=
true
;
}
Real
increment
=
0.004
;
Real
error
;
for
(
UInt
n
=
0
;
n
<
mesh
.
getNbNodes
();
++
n
)
{
if
(
position
(
n
,
1
)
>
0.99
&&
position
(
n
,
0
)
<
-
0.99
)
displacement
(
n
,
1
)
+=
increment
;
}
model
.
solveStepCohesive
<
_scm_newton_raphson_tangent
,
_scc_increment
>
(
1e-13
,
error
,
10
);
/// save the matrix
model
.
getStiffnessMatrix
().
saveMatrix
(
"K_matrix_test"
);
finalize
();
return
EXIT_SUCCESS
;
}
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