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test_material_FE2.cc
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Mon, Aug 19, 21:34
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Wed, Aug 21, 21:34 (2 d)
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rAKA akantu
test_material_FE2.cc
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/**
* Copyright (©) 2018-2023 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* This file is part of Akantu
*
* 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 "communicator.hh"
#include "material_FE2.hh"
#include "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
/* -------------------------------------------------------------------------- */
/* Main */
/* -------------------------------------------------------------------------- */
int
main
(
int
argc
,
char
*
argv
[])
{
debug
::
setDebugLevel
(
dblWarning
);
initialize
(
"material.dat"
,
argc
,
argv
);
const
auto
&
comm
=
Communicator
::
getStaticCommunicator
();
Int
prank
=
comm
.
whoAmI
();
/// input parameters for the simulation
const
Int
spatial_dimension
=
2
;
const
ParserSection
&
parser
=
getUserParser
();
std
::
string
mesh_file
=
parser
.
getParameter
(
"mesh_file"
);
Matrix
<
Real
>
prestrain_increment
=
parser
.
getParameter
(
"prestrain_increment"
);
UInt
total_steps
=
parser
.
getParameter
(
"total_steps"
);
Mesh
mesh
(
spatial_dimension
);
if
(
prank
==
0
)
{
mesh
.
read
(
mesh_file
);
}
mesh
.
distribute
();
/// model creation
SolidMechanicsModel
model
(
mesh
);
/// set the material selector
auto
mat_selector
=
std
::
make_shared
<
MaterialSelector
>
();
mat_selector
->
setFallback
(
3
);
model
.
setMaterialSelector
(
mat_selector
);
model
.
initFull
(
SolidMechanicsModelOptions
(
_static
));
/* --------------------------------------------------------------------------
*/
/// boundary conditions
mesh
.
createGroupsFromMeshData
<
std
::
string
>
(
"physical_names"
);
// creates groups from mesh names
model
.
applyBC
(
BC
::
Dirichlet
::
FixedValue
(
0
,
_x
),
"bottom"
);
model
.
applyBC
(
BC
::
Dirichlet
::
FixedValue
(
0
,
_y
),
"bottom"
);
// model.applyBC(BC::Dirichlet::FixedValue(1.e-2, _y), "top");
model
.
setBaseName
(
"macro_mesh"
);
model
.
addDumpFieldVector
(
"displacement"
);
model
.
addDumpField
(
"stress"
);
model
.
addDumpField
(
"grad_u"
);
model
.
addDumpField
(
"eigen_grad_u"
);
model
.
addDumpField
(
"blocked_dofs"
);
model
.
addDumpField
(
"material_index"
);
model
.
addDumpField
(
"material_stiffness"
);
model
.
dump
();
/// solve system
model
.
assembleStiffnessMatrix
();
std
::
cout
<<
"first solve step"
<<
std
::
endl
;
model
.
solveStep
();
std
::
cout
<<
"second solve step"
<<
std
::
endl
;
model
.
solveStep
();
std
::
cout
<<
"finished solve steps"
<<
std
::
endl
;
/// simulate the advancement of the reaction
MaterialFE2
<
spatial_dimension
>
&
mat
=
dynamic_cast
<
MaterialFE2
<
spatial_dimension
>
&>
(
model
.
getMaterial
(
"FE2_mat"
));
Matrix
<
Real
>
current_prestrain
(
spatial_dimension
,
spatial_dimension
,
0.
);
for
(
Int
i
=
0
;
i
<
total_steps
;
++
i
)
{
model
.
dump
();
current_prestrain
+=
prestrain_increment
;
mat
.
advanceASR
(
current_prestrain
);
model
.
dump
();
/// solve for new displacement at the macro-scale
model
.
solveStep
();
}
model
.
dump
();
finalize
();
return
EXIT_SUCCESS
;
}
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