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test_igfem_element_orientation.cc
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rAKA akantu
test_igfem_element_orientation.cc
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/**
* @file test_interface_position.cc
*
* @author Aurelia Isabel Cuba Ramos <aurelia.cubaramos@epfl.ch>
*
*
* @brief patch test for interface close to standard nodes
*
* @section LICENSE
*
* Copyright (©) 2010-2012, 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
*/
/* -------------------------------------------------------------------------- */
#include "solid_mechanics_model_igfem.hh"
#include "material_elastic.hh"
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
int
main
(
int
argc
,
char
*
argv
[])
{
initialize
(
"material.dat"
,
argc
,
argv
);
StaticCommunicator
&
comm
=
StaticCommunicator
::
getStaticCommunicator
();
Int
psize
=
comm
.
getNbProc
();
Int
prank
=
comm
.
whoAmI
();
/// create a mesh and read the regular elements from the mesh file
/// mesh creation
const
UInt
spatial_dimension
=
2
;
Mesh
mesh
(
spatial_dimension
);
akantu
::
MeshPartition
*
partition
=
NULL
;
if
(
prank
==
0
)
{
mesh
.
read
(
"test_igfem_element_orientation.msh"
);
partition
=
new
MeshPartitionScotch
(
mesh
,
spatial_dimension
);
partition
->
partitionate
(
psize
);
}
/// model creation
SolidMechanicsModelIGFEM
model
(
mesh
);
model
.
initParallel
(
partition
);
delete
partition
;
model
.
initFull
();
/// add fields that should be dumped
model
.
setBaseName
(
"regular_elements"
);
model
.
setBaseNameToDumper
(
"igfem elements"
,
"igfem elements"
);
model
.
addDumpField
(
"material_index"
);
model
.
addDumpField
(
"partitions"
);
model
.
addDumpFieldToDumper
(
"igfem elements"
,
"lambda"
);
model
.
addDumpFieldToDumper
(
"igfem elements"
,
"material_index"
);
model
.
addDumpFieldToDumper
(
"igfem elements"
,
"partitions"
);
/// dump mesh before the IGFEM interface is created
model
.
dump
();
model
.
dump
(
"igfem elements"
);
/// create the interace:
std
::
list
<
SK
::
Sphere_3
>
sphere_list
;
Real
radius
=
std
::
sqrt
(
0.2
*
0.2
+
0.2
*
0.2
);
Real
tol
=
std
::
sqrt
(
2.
)
*
1e-11
;
radius
+=
tol
;
SK
::
Sphere_3
sphere_1
(
SK
::
Point_3
(
-
0.2
,
0.3
,
0.
),
radius
*
radius
);
sphere_list
.
push_back
(
sphere_1
);
model
.
registerGeometryObject
(
sphere_list
,
"gel"
);
model
.
update
();
/// check that the igfem elements have been created correctly
UInt
nb_igfem_triangle_4
=
mesh
.
getNbElement
(
_igfem_triangle_4
,
_not_ghost
);
UInt
nb_igfem_triangle_5
=
mesh
.
getNbElement
(
_igfem_triangle_5
,
_not_ghost
);
comm
.
allReduce
(
&
nb_igfem_triangle_4
,
1
,
_so_sum
);
comm
.
allReduce
(
&
nb_igfem_triangle_5
,
1
,
_so_sum
);
if
(
prank
==
0
)
{
if
(
(
nb_igfem_triangle_4
!=
2
)
||
(
nb_igfem_triangle_5
!=
1
))
{
std
::
cout
<<
"something went wrong in the interface creation"
<<
std
::
endl
;
finalize
();
return
EXIT_FAILURE
;
}
}
/// check that the igfem nodes have been created correctly
UInt
nb_global_nodes
=
0
;
for
(
UInt
n
=
0
;
n
<
mesh
.
getNbNodes
();
++
n
)
{
if
(
mesh
.
isLocalOrMasterNode
(
n
))
nb_global_nodes
+=
1
;
}
comm
.
allReduce
(
&
nb_global_nodes
,
1
,
_so_sum
);
if
(
prank
==
0
&&
nb_global_nodes
!=
27
)
{
std
::
cout
<<
"something went wrong in the interface creation"
<<
std
::
endl
;
finalize
();
return
EXIT_FAILURE
;
}
/// in this test the sphere interface is positioned in a way that it
/// genereates two IGFEM elements (of type _igfem_triangle_4), that are enriched for
/// compatibilty with their neighboring elements but they don't
/// contain a material interface. Therefore, the same material has
/// to be assigned to both sub-elements.
/// this is to check that both sub-elements have the same material
/// properties Note: This check works because all _igfem_triangle_4s
/// in the mesh do not contain a material interface
MaterialElastic
<
spatial_dimension
>
&
aggregate_mat
=
dynamic_cast
<
MaterialElastic
<
spatial_dimension
>
&>
(
model
.
getMaterial
(
"aggregate"
));
Real
lambda_1
=
aggregate_mat
.
getLambda
();
Real
mu_1
=
aggregate_mat
.
getMu
();
ElementType
type
=
_igfem_triangle_4
;
GhostType
ghost_type
=
_not_ghost
;
UInt
nb_element
=
mesh
.
getNbElement
(
type
,
ghost_type
);
UInt
nb_quads
=
model
.
getFEEngine
(
"IGFEMFEEngine"
).
getNbIntegrationPoints
(
type
);
Real
*
lambda
=
model
.
getMaterial
(
"igfem_elastic"
).
getArray
<
Real
>
(
"lambda"
,
type
,
ghost_type
).
storage
();
Real
*
mu
=
model
.
getMaterial
(
"igfem_elastic"
).
getArray
<
Real
>
(
"mu"
,
type
,
ghost_type
).
storage
();
Real
error
=
0
;
for
(
UInt
e
=
0
;
e
<
nb_element
;
++
e
)
{
for
(
UInt
q
=
0
;
q
<
nb_quads
;
++
q
,
++
lambda
,
++
mu
)
{
error
+=
std
::
abs
(
lambda_1
-
*
lambda
);
error
+=
std
::
abs
(
mu_1
-
*
mu
);
}
}
comm
.
allReduce
(
&
error
,
1
,
_so_sum
);
if
(
prank
==
0
)
{
std
::
cout
<<
"The error is: "
<<
error
<<
std
::
endl
;
if
(
error
>
1e-14
)
{
std
::
cout
<<
"The test failed!!!!"
<<
std
::
endl
;
finalize
();
return
EXIT_FAILURE
;
}
}
/// dump mesh after the IGFEM interface is created
model
.
dump
();
model
.
dump
(
"igfem elements"
);
finalize
();
return
EXIT_SUCCESS
;
}
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