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rAKA akantu
test_damage_materials.cc
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/**
* @file test_damage_materials.cc
*
* @author Guillaume Anciaux <guillaume.anciaux@epfl.ch>
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Fri Nov 17 2017
* @date last modification: Wed Nov 18 2020
*
* @brief Tests for damage materials
*
*
* @section LICENSE
*
* Copyright (©) 2016-2021 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 "test_material_fixtures.hh"
/* -------------------------------------------------------------------------- */
#include <material_marigo.hh>
#include <material_mazars.hh>
#include <py_aka_array.hh>
#include <solid_mechanics_model.hh>
/* -------------------------------------------------------------------------- */
#include <fstream>
#include <gtest/gtest.h>
#include <pybind11/embed.h>
#include <pybind11/numpy.h>
#include <pybind11/stl.h>
#include <type_traits>
/* -------------------------------------------------------------------------- */
using
namespace
akantu
;
namespace
py
=
pybind11
;
using
namespace
py
::
literals
;
using
mat_types
=
::
testing
::
Types
<
// Traits<MaterialMarigo, 1>, Traits<MaterialMarigo, 2>,
// Traits<MaterialMarigo, 3>,
Traits
<
MaterialMazars
,
1
>
,
Traits
<
MaterialMazars
,
2
>
,
Traits
<
MaterialMazars
,
3
>>
;
/*****************************************************************/
template
<>
void
FriendMaterial
<
MaterialMazars
<
1
>>::
setParams
()
{
K0
.
setDefaultValue
(
1e-4
);
At
=
1.0
;
Bt
=
5e3
;
Ac
=
0.8
;
Bc
=
1391.3
;
beta
=
1.
;
E
=
25e9
;
nu
=
0.2
;
updateInternalParameters
();
}
template
<>
void
FriendMaterial
<
MaterialMazars
<
2
>>::
setParams
()
{
K0
.
setDefaultValue
(
1e-4
);
At
=
1.0
;
Bt
=
5e3
;
Ac
=
0.8
;
Bc
=
1391.3
;
beta
=
1.
;
E
=
25e9
;
nu
=
0.2
;
plane_stress
=
true
;
updateInternalParameters
();
}
template
<>
void
FriendMaterial
<
MaterialMazars
<
3
>>::
setParams
()
{
K0
.
setDefaultValue
(
1e-4
);
At
=
1.0
;
Bt
=
5e3
;
Ac
=
0.8
;
Bc
=
1391.3
;
beta
=
1.
;
E
=
25e9
;
nu
=
0.2
;
updateInternalParameters
();
}
template
<>
void
FriendMaterial
<
MaterialMazars
<
1
>>::
testComputeStress
()
{
Array
<
Real
>
epsilons
(
1001
,
1
);
Array
<
Real
>
sigmas
(
1001
,
1
);
Array
<
Real
>
damages
(
1001
,
1
);
for
(
auto
&&
data
:
enumerate
(
epsilons
))
{
std
::
get
<
1
>
(
data
)
=
2e-6
*
std
::
get
<
0
>
(
data
);
}
Real
_K0
=
K0
;
py
::
module
py_engine
=
py
::
module
::
import
(
"py_mazars"
);
auto
kwargs_mat_params
=
py
::
dict
(
"K0"
_a
=
_K0
,
"At"
_a
=
At
,
"Bt"
_a
=
Bt
,
"Ac"
_a
=
Ac
,
"Bc"
_a
=
Bc
,
"E"
_a
=
E
,
"nu"
_a
=
nu
);
auto
kwargs
=
py
::
dict
(
"epsilons"
_a
=
epsilons
,
"sigmas"
_a
=
sigmas
,
"damages"
_a
=
damages
);
auto
py_mazars
=
py_engine
.
attr
(
"Mazars"
)(
**
kwargs_mat_params
);
// auto Gf_py = py_mazars.attr("compute")(**kwargs);
Real
dam
=
0.
;
Real
dam_ref
=
0.
;
Real
ehat
=
0.
;
for
(
auto
&&
epsilon
:
epsilons
)
{
Matrix
<
Real
>
strain
(
this
->
spatial_dimension
,
this
->
spatial_dimension
,
0.
);
Matrix
<
Real
>
sigma
(
this
->
spatial_dimension
,
this
->
spatial_dimension
,
0.
);
strain
(
0
,
0
)
=
epsilon
;
computeStressOnQuad
(
strain
,
sigma
,
dam
,
ehat
);
Real
sigma_ref
;
auto
py_data
=
py_mazars
.
attr
(
"compute_step"
)(
epsilon
,
sigma_ref
,
dam_ref
,
false
);
std
::
tie
(
sigma_ref
,
dam_ref
)
=
py
::
cast
<
std
::
pair
<
double
,
double
>>
(
py_data
);
EXPECT_NEAR
(
sigma
(
0
,
0
),
sigma_ref
,
1e-5
);
EXPECT_NEAR
(
dam
,
dam_ref
,
1e-10
);
}
}
template
<>
void
FriendMaterial
<
MaterialMazars
<
2
>>::
testComputeStress
()
{
Array
<
Real
>
epsilons
(
1001
,
1
);
Array
<
Real
>
sigmas
(
1001
,
1
);
Array
<
Real
>
damages
(
1001
,
1
);
for
(
auto
&&
data
:
enumerate
(
epsilons
))
{
std
::
get
<
1
>
(
data
)
=
2e-6
*
std
::
get
<
0
>
(
data
);
}
Real
_K0
=
K0
;
py
::
module
py_engine
=
py
::
module
::
import
(
"py_mazars"
);
auto
kwargs_mat_params
=
py
::
dict
(
"K0"
_a
=
_K0
,
"At"
_a
=
At
,
"Bt"
_a
=
Bt
,
"Ac"
_a
=
Ac
,
"Bc"
_a
=
Bc
,
"E"
_a
=
E
,
"nu"
_a
=
nu
);
auto
kwargs
=
py
::
dict
(
"epsilons"
_a
=
epsilons
,
"sigmas"
_a
=
sigmas
,
"damages"
_a
=
damages
);
auto
py_mazars
=
py_engine
.
attr
(
"Mazars"
)(
**
kwargs_mat_params
);
// auto Gf_py = py_mazars.attr("compute")(**kwargs);
Real
dam
=
0.
;
Real
dam_ref
=
0.
;
Real
ehat
=
0.
;
for
(
auto
&&
epsilon
:
epsilons
)
{
Matrix
<
Real
>
strain
(
this
->
spatial_dimension
,
this
->
spatial_dimension
,
0.
);
Matrix
<
Real
>
sigma
(
this
->
spatial_dimension
,
this
->
spatial_dimension
,
0.
);
strain
(
0
,
0
)
=
epsilon
;
strain
(
1
,
1
)
=
-
this
->
nu
*
epsilon
;
computeStressOnQuad
(
strain
,
sigma
,
dam
,
ehat
);
Real
sigma_ref
;
auto
py_data
=
py_mazars
.
attr
(
"compute_step"
)(
epsilon
,
sigma_ref
,
dam_ref
,
false
);
std
::
tie
(
sigma_ref
,
dam_ref
)
=
py
::
cast
<
std
::
pair
<
double
,
double
>>
(
py_data
);
EXPECT_NEAR
(
sigma
(
0
,
0
),
sigma_ref
,
1e-5
);
EXPECT_NEAR
(
dam
,
dam_ref
,
1e-10
);
}
}
template
<>
void
FriendMaterial
<
MaterialMazars
<
3
>>::
testComputeStress
()
{
Array
<
Real
>
epsilons
(
1001
,
1
);
Array
<
Real
>
sigmas
(
1001
,
1
);
Array
<
Real
>
damages
(
1001
,
1
);
for
(
auto
&&
data
:
enumerate
(
epsilons
))
{
std
::
get
<
1
>
(
data
)
=
2e-6
*
std
::
get
<
0
>
(
data
);
}
Real
_K0
=
K0
;
py
::
module
py_engine
=
py
::
module
::
import
(
"py_mazars"
);
auto
kwargs_mat_params
=
py
::
dict
(
"K0"
_a
=
_K0
,
"At"
_a
=
At
,
"Bt"
_a
=
Bt
,
"Ac"
_a
=
Ac
,
"Bc"
_a
=
Bc
,
"E"
_a
=
E
,
"nu"
_a
=
nu
);
auto
kwargs
=
py
::
dict
(
"epsilons"
_a
=
epsilons
,
"sigmas"
_a
=
sigmas
,
"damages"
_a
=
damages
);
auto
py_mazars
=
py_engine
.
attr
(
"Mazars"
)(
**
kwargs_mat_params
);
// auto Gf_py = py_mazars.attr("compute")(**kwargs);
Real
dam
=
0.
;
Real
dam_ref
=
0.
;
Real
ehat
=
0.
;
for
(
auto
&&
epsilon
:
epsilons
)
{
Matrix
<
Real
>
strain
(
this
->
spatial_dimension
,
this
->
spatial_dimension
,
0.
);
Matrix
<
Real
>
sigma
(
this
->
spatial_dimension
,
this
->
spatial_dimension
,
0.
);
strain
(
0
,
0
)
=
epsilon
;
strain
(
1
,
1
)
=
strain
(
2
,
2
)
=
-
this
->
nu
*
epsilon
;
computeStressOnQuad
(
strain
,
sigma
,
dam
,
ehat
);
Real
sigma_ref
;
auto
py_data
=
py_mazars
.
attr
(
"compute_step"
)(
epsilon
,
sigma_ref
,
dam_ref
,
false
);
std
::
tie
(
sigma_ref
,
dam_ref
)
=
py
::
cast
<
std
::
pair
<
double
,
double
>>
(
py_data
);
EXPECT_NEAR
(
sigma
(
0
,
0
),
sigma_ref
,
1e-5
);
EXPECT_NEAR
(
dam
,
dam_ref
,
1e-10
);
}
}
namespace
{
template
<
typename
T
>
class
TestDamageMaterialFixture
:
public
::
TestMaterialFixture
<
T
>
{};
TYPED_TEST_SUITE
(
TestDamageMaterialFixture
,
mat_types
,
);
TYPED_TEST
(
TestDamageMaterialFixture
,
ComputeStress
)
{
this
->
material
->
testComputeStress
();
}
TYPED_TEST
(
TestDamageMaterialFixture
,
DISABLED_EnergyDensity
)
{
this
->
material
->
testEnergyDensity
();
}
TYPED_TEST
(
TestDamageMaterialFixture
,
DISABLED_ComputeTangentModuli
)
{
this
->
material
->
testComputeTangentModuli
();
}
TYPED_TEST
(
TestDamageMaterialFixture
,
DISABLED_ComputeCelerity
)
{
this
->
material
->
testCelerity
();
}
}
// namespace
/*****************************************************************/
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