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user_defined_bc.cc
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Created
Sat, Oct 19, 00:55
Size
2 KB
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text/x-c++
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Mon, Oct 21, 00:55 (2 d)
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blob
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21778607
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rAKA akantu
user_defined_bc.cc
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/**
* Copyright (©) 2010-2023 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 "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
#include <iostream>
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
class
SineBoundary
:
public
BC
::
Dirichlet
::
DirichletFunctor
{
public
:
SineBoundary
(
Real
amp
,
Real
phase
,
BC
::
Axis
ax
=
_x
)
:
DirichletFunctor
(
ax
),
amplitude
(
amp
),
phase
(
phase
)
{}
public
:
inline
void
operator
()(
Idx
/*node*/
,
VectorProxy
<
bool
>
&
flags
,
VectorProxy
<
Real
>
&
primal
,
const
VectorProxy
<
const
Real
>
&
coord
)
override
{
DIRICHLET_SANITY_CHECK
;
flags
(
axis
)
=
true
;
primal
(
axis
)
=
-
amplitude
*
std
::
sin
(
phase
*
coord
(
1
));
}
protected
:
Real
amplitude
;
Real
phase
;
};
/* -------------------------------------------------------------------------- */
int
main
(
int
argc
,
char
*
argv
[])
{
initialize
(
"material.dat"
,
argc
,
argv
);
Int
spatial_dimension
=
2
;
Mesh
mesh
(
spatial_dimension
);
mesh
.
read
(
"fine_mesh.msh"
);
SolidMechanicsModel
model
(
mesh
);
/// model initialization
model
.
initFull
();
/// boundary conditions
Vector
<
Real
,
2
>
traction
{
.2
,
.2
};
model
.
applyBC
(
SineBoundary
(
.2
,
10.
,
_x
),
"Fixed_x"
);
model
.
applyBC
(
BC
::
Dirichlet
::
FixedValue
(
0.
,
_y
),
"Fixed_y"
);
model
.
applyBC
(
BC
::
Neumann
::
FromTraction
(
traction
),
"Traction"
);
// output a paraview file with the boundary conditions
model
.
setBaseName
(
"plate"
);
model
.
addDumpFieldVector
(
"displacement"
);
model
.
addDumpFieldVector
(
"external_force"
);
model
.
addDumpField
(
"blocked_dofs"
);
model
.
dump
();
return
0
;
}
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