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test_lumped_mass.cc
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Tue, Aug 27, 18:05
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text/x-c++
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Thu, Aug 29, 18:05 (2 d)
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rAKA akantu
test_lumped_mass.cc
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/**
* @file test_lumped_mass.cc
*
* @author Daniel Pino Muñoz <daniel.pinomunoz@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Thu Mar 27 2014
* @date last modification: Thu Oct 15 2015
*
* @brief test the lumping of the mass matrix
*
* @section LICENSE
*
* Copyright (©) 2014, 2015 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 "test_gtest_utils.hh"
/* -------------------------------------------------------------------------- */
#include <gtest/gtest.h>
#include <tuple>
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
template
<
typename
tuple_
>
class
TestLumpedMassesFixture
:
public
::
testing
::
Test
{
public
:
static
constexpr
ElementType
type
=
tuple_
::
value
;
static
constexpr
size_t
dim
=
ElementClass
<
type
>::
getSpatialDimension
();
void
SetUp
()
override
{
debug
::
setDebugLevel
(
dblError
);
getStaticParser
().
parse
(
"material_lumped.dat"
);
std
::
stringstream
element_type
;
element_type
<<
type
;
mesh
=
std
::
make_unique
<
Mesh
>
(
dim
);
mesh
->
read
(
element_type
.
str
()
+
".msh"
);
SCOPED_TRACE
(
element_type
.
str
().
c_str
());
model
=
std
::
make_unique
<
SolidMechanicsModel
>
(
*
mesh
);
model
->
initFull
(
_analysis_method
=
_explicit_lumped_mass
);
}
void
TearDown
()
override
{
model
.
reset
(
nullptr
);
mesh
.
reset
(
nullptr
);
}
protected
:
std
::
unique_ptr
<
Mesh
>
mesh
;
std
::
unique_ptr
<
SolidMechanicsModel
>
model
;
};
template
<
typename
T
>
constexpr
ElementType
TestLumpedMassesFixture
<
T
>::
type
;
template
<
typename
T
>
constexpr
size_t
TestLumpedMassesFixture
<
T
>::
dim
;
using
types
=
gtest_list_t
<
TestElementTypes
>
;
TYPED_TEST_CASE
(
TestLumpedMassesFixture
,
types
);
TYPED_TEST
(
TestLumpedMassesFixture
,
TestLumpedMass
)
{
this
->
model
->
assembleMassLumped
();
auto
rho
=
this
->
model
->
getMaterial
(
0
).
getRho
();
auto
&
fem
=
this
->
model
->
getFEEngine
();
auto
nb_element
=
this
->
mesh
->
getNbElement
(
this
->
type
);
auto
nb_quadrature_points
=
fem
.
getNbIntegrationPoints
(
this
->
type
)
*
nb_element
;
Array
<
Real
>
rho_on_quad
(
nb_quadrature_points
,
1
,
rho
,
"rho_on_quad"
);
auto
mass
=
fem
.
integrate
(
rho_on_quad
,
this
->
type
);
const
auto
&
masses
=
this
->
model
->
getMass
();
Vector
<
Real
>
sum
(
this
->
dim
,
0.
);
for
(
auto
&
mass
:
make_view
(
masses
,
this
->
dim
))
{
sum
+=
mass
;
}
for
(
UInt
s
=
0
;
s
<
sum
.
size
();
++
s
)
EXPECT_NEAR
(
0.
,
(
mass
-
sum
[
s
])
/
mass
,
2e-15
);
}
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