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test_material_orthotropic.cc
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Thu, Aug 22, 04:46
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rAKA akantu
test_material_orthotropic.cc
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/**
* @file test_material_orthotropic.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Wed Aug 04 2010
* @date last modification: Sun Jul 09 2017
*
* @brief test of the class SolidMechanicsModel
*
* @section LICENSE
*
* Copyright (©) 2010-2018 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 "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
#include <fstream>
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
// akantu::initialize("orthotropic.dat", argc, argv);
akantu
::
initialize
(
"orthotropic.dat"
,
argc
,
argv
);
UInt
max_steps
=
1000
;
Real
epot
,
ekin
;
Mesh
mesh
(
2
);
mesh
.
read
(
"square.msh"
);
mesh
.
createBoundaryGroupFromGeometry
();
SolidMechanicsModel
model
(
mesh
);
/// model initialization
model
.
initFull
();
Real
time_step
=
model
.
getStableTimeStep
();
model
.
setTimeStep
(
time_step
/
10.
);
model
.
assembleMassLumped
();
std
::
cout
<<
model
<<
std
::
endl
;
// Boundary condition (Neumann)
Matrix
<
Real
>
stress
(
2
,
2
);
stress
.
eye
(
Real
(
1e3
));
model
.
applyBC
(
BC
::
Neumann
::
FromHigherDim
(
stress
),
"boundary_0"
);
model
.
setBaseName
(
"square-orthotrope"
);
model
.
addDumpFieldVector
(
"displacement"
);
model
.
addDumpField
(
"mass"
);
model
.
addDumpField
(
"velocity"
);
model
.
addDumpField
(
"acceleration"
);
model
.
addDumpFieldVector
(
"external_force"
);
model
.
addDumpFieldVector
(
"internal_force"
);
model
.
addDumpField
(
"stress"
);
model
.
addDumpField
(
"grad_u"
);
model
.
dump
();
std
::
ofstream
energy
;
energy
.
open
(
"energy.csv"
);
energy
<<
"id,epot,ekin,tot"
<<
std
::
endl
;
for
(
UInt
s
=
0
;
s
<
max_steps
;
++
s
)
{
model
.
solveStep
();
epot
=
model
.
getEnergy
(
"potential"
);
ekin
=
model
.
getEnergy
(
"kinetic"
);
std
::
cerr
<<
"passing step "
<<
s
<<
"/"
<<
max_steps
<<
std
::
endl
;
energy
<<
s
<<
","
<<
epot
<<
","
<<
ekin
<<
","
<<
epot
+
ekin
<<
std
::
endl
;
if
(
s
%
100
==
0
)
model
.
dump
();
}
energy
.
close
();
finalize
();
return
EXIT_SUCCESS
;
}
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