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test_conforming_mesh.cc
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rAKA akantu
test_conforming_mesh.cc
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/**
* @file test_solid_mechanics_model_igfem.cc
*
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
*
*
* @brief test the solidmechancis model for IGFEM analysis
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
*/
/* -------------------------------------------------------------------------- */
#include "aka_common.hh"
// #include "mesh_segment_intersector.hh"
// #include "mesh_sphere_intersector.hh"
// #include "geom_helper_functions.hh"
// #include "mesh_geom_common.hh"
#include "solid_mechanics_model.hh"
/* -------------------------------------------------------------------------- */
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <cmath>
#include <math.h>
#include "dumper_paraview.hh"
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
initialize
(
"material.dat"
,
argc
,
argv
);
/// problem dimension
UInt
spatial_dimension
=
2
;
/// mesh creation
Mesh
mesh
(
spatial_dimension
);
mesh
.
read
(
std
::
string
(
argv
[
1
]));
/// geometry of inclusion
Real
radius_inclusion
=
0.36
;
/// model creation
SolidMechanicsModel
model
(
mesh
);
MeshDataMaterialSelector
<
UInt
>
*
mat_selector
;
mat_selector
=
new
MeshDataMaterialSelector
<
UInt
>
(
"tag_1"
,
model
,
5
);
model
.
setMaterialSelector
(
*
mat_selector
);
model
.
initFull
(
SolidMechanicsModelOptions
(
_static
));
/// boundary conditions
mesh
.
computeBoundingBox
();
const
Vector
<
Real
>
&
lowerBounds
=
mesh
.
getLowerBounds
();
const
Vector
<
Real
>
&
upperBounds
=
mesh
.
getUpperBounds
();
Real
bottom
=
lowerBounds
(
1
);
Real
top
=
upperBounds
(
1
);
Real
left
=
lowerBounds
(
0
);
Real
right
=
upperBounds
(
0
);
Real
eps
=
std
::
abs
((
top
-
bottom
)
*
1e-12
);
const
Array
<
Real
>
&
pos
=
mesh
.
getNodes
();
Array
<
Real
>
&
disp
=
model
.
getDisplacement
();
Array
<
bool
>
&
boun
=
model
.
getBlockedDOFs
();
Real
radius
=
0
;
Real
phi
=
0
;
Real
alpha
=
0.929131442935370
;
/// absolute confinement
for
(
UInt
i
=
0
;
i
<
mesh
.
getNbNodes
();
++
i
)
{
if
(
std
::
abs
(
pos
(
i
,
0
)
-
left
)
<
eps
)
{
radius
=
std
::
sqrt
(
pos
(
i
,
0
)
*
pos
(
i
,
0
)
+
pos
(
i
,
1
)
*
pos
(
i
,
1
));
phi
=
std
::
atan2
(
pos
(
i
,
1
),
pos
(
i
,
0
));
boun
(
i
,
0
)
=
true
;
disp
(
i
,
0
)
=
cos
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
boun
(
i
,
1
)
=
true
;
disp
(
i
,
1
)
=
sin
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
}
if
(
std
::
abs
(
pos
(
i
,
0
)
-
right
)
<
eps
)
{
radius
=
std
::
sqrt
(
pos
(
i
,
0
)
*
pos
(
i
,
0
)
+
pos
(
i
,
1
)
*
pos
(
i
,
1
));
phi
=
std
::
atan2
(
pos
(
i
,
1
),
pos
(
i
,
0
));
boun
(
i
,
0
)
=
true
;
disp
(
i
,
0
)
=
cos
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
boun
(
i
,
1
)
=
true
;
disp
(
i
,
1
)
=
sin
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
}
if
(
std
::
abs
(
pos
(
i
,
1
)
-
top
)
<
eps
)
{
radius
=
std
::
sqrt
(
pos
(
i
,
0
)
*
pos
(
i
,
0
)
+
pos
(
i
,
1
)
*
pos
(
i
,
1
));
phi
=
std
::
atan2
(
pos
(
i
,
1
),
pos
(
i
,
0
));
boun
(
i
,
0
)
=
true
;
disp
(
i
,
0
)
=
cos
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
boun
(
i
,
1
)
=
true
;
disp
(
i
,
1
)
=
sin
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
}
if
(
std
::
abs
(
pos
(
i
,
1
)
-
bottom
)
<
eps
)
{
radius
=
std
::
sqrt
(
pos
(
i
,
0
)
*
pos
(
i
,
0
)
+
pos
(
i
,
1
)
*
pos
(
i
,
1
));
phi
=
std
::
atan2
(
pos
(
i
,
1
),
pos
(
i
,
0
));
boun
(
i
,
0
)
=
true
;
disp
(
i
,
0
)
=
cos
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
boun
(
i
,
1
)
=
true
;
disp
(
i
,
1
)
=
sin
(
phi
)
*
(
(
radius
-
4.
/
radius
)
*
alpha
+
4.
/
radius
);
}
}
model
.
setBaseName
(
"regular_mesh_test"
);
model
.
addDumpField
(
"material_index"
);
model
.
addDumpFieldVector
(
"displacement"
);
model
.
addDumpField
(
"blocked_dofs"
);
model
.
addDumpField
(
"stress"
);
model
.
addDumpField
(
"damage"
);
model
.
addDumpField
(
"Sc"
);
Math
::
setTolerance
(
1e-14
);
// dumper_igfem.dump();
model
.
dump
();
bool
factorize
=
false
;
bool
converged
=
false
;
Real
error
;
converged
=
model
.
solveStep
<
_scm_newton_raphson_tangent
,
_scc_increment
>
(
1e-4
,
error
,
2
,
factorize
);
model
.
dump
();
finalize
();
return
EXIT_SUCCESS
;
}
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