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hooke.cpp
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Wed, May 8, 04:26
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rTAMAAS tamaas
hooke.cpp
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/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2024 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2024 Lucas Frérot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "hooke.hh"
#include "influence.hh"
#include "loop.hh"
#include "model.hh"
#include "static_types.hh"
#include <boost/preprocessor/seq.hpp>
/* -------------------------------------------------------------------------- */
namespace
tamaas
{
template
<
model_type
type
>
void
Hooke
<
type
>::
apply
(
GridBase
<
Real
>&
strain
,
GridBase
<
Real
>&
stress
)
const
{
constexpr
auto
dim
=
model_type_traits
<
type
>::
dimension
;
const
influence
::
ElasticHelper
<
dim
>
elasticity
(
this
->
model
->
getShearModulus
(),
this
->
model
->
getPoissonRatio
());
// Checking incompressibility
if
(
elasticity
.
nu
==
0.5
)
throw
std
::
range_error
{
TAMAAS_MSG
(
"Incompressibility error, nu = 0.5"
)};
// Checking number of components
if
(
strain
.
getNbComponents
()
==
dim
*
dim
)
{
Loop
::
loop
(
[
elasticity
]
CUDA_LAMBDA
(
MatrixProxy
<
Real
,
dim
,
dim
>
sigma
,
MatrixProxy
<
const
Real
,
dim
,
dim
>
epsilon
)
{
sigma
=
elasticity
(
epsilon
);
},
range
<
MatrixProxy
<
Real
,
dim
,
dim
>>
(
stress
),
range
<
MatrixProxy
<
const
Real
,
dim
,
dim
>>
(
strain
));
}
// in case we have voigt notation
else
if
(
strain
.
getNbComponents
()
==
voigt_size
<
dim
>::
value
)
{
Loop
::
loop
(
[
elasticity
]
CUDA_LAMBDA
(
SymMatrixProxy
<
Real
,
dim
>
sigma
,
SymMatrixProxy
<
const
Real
,
dim
>
epsilon
)
{
sigma
=
elasticity
(
epsilon
);
},
range
<
SymMatrixProxy
<
Real
,
dim
>>
(
stress
),
range
<
SymMatrixProxy
<
const
Real
,
dim
>>
(
strain
));
}
else
throw
std
::
invalid_argument
{
TAMAAS_MSG
(
"Strain components ("
,
strain
.
getNbComponents
(),
") do not match model type "
,
type
)};
}
/* -------------------------------------------------------------------------- */
template
<
model_type
type
>
std
::
pair
<
UInt
,
UInt
>
Hooke
<
type
>::
matvecShape
()
const
{
auto
shape
=
this
->
model
->
getDiscretization
();
auto
N
=
std
::
accumulate
(
shape
.
begin
(),
shape
.
end
(),
6
,
std
::
multiplies
<
UInt
>
());
return
std
::
make_pair
(
N
,
N
);
}
template
<
model_type
type
>
GridBase
<
Real
>
Hooke
<
type
>::
matvec
(
GridBase
<
Real
>&
X
)
const
{
constexpr
auto
dim
=
model_type_traits
<
type
>::
dimension
;
X
.
setNbComponents
(
voigt_size
<
dim
>::
value
);
GridBase
<
Real
>
x
(
X
.
getGlobalNbPoints
(),
X
.
getNbComponents
());
apply
(
X
,
x
);
return
x
;
}
/* -------------------------------------------------------------------------- */
template
<
model_type
type
>
HookeField
<
type
>::
HookeField
(
Model
*
model
)
:
Hooke
<
type
>
(
model
)
{
this
->
template
request
<
false
,
Real
>
(
"mu"
,
model
->
getType
(),
model
->
getDiscretization
(),
1
);
this
->
template
request
<
false
,
Real
>
(
"nu"
,
model
->
getType
(),
model
->
getDiscretization
(),
1
);
this
->
template
field
<
Real
>
(
"mu"
)
=
model
->
getShearModulus
();
this
->
template
field
<
Real
>
(
"nu"
)
=
model
->
getPoissonRatio
();
}
template
<
UInt
dim
>
struct
HookeFieldHelper
{
void
operator
()(
MatrixProxy
<
Real
,
dim
,
dim
>
sigma
,
MatrixProxy
<
const
Real
,
dim
,
dim
>
epsilon
,
const
Real
&
mu
,
const
Real
&
nu
)
{
elasticity
.
mu
=
mu
;
elasticity
.
nu
=
nu
;
sigma
=
elasticity
(
epsilon
);
}
influence
::
ElasticHelper
<
dim
>
elasticity
{
0
,
0
};
};
template
<
UInt
dim
>
struct
SymHookeFieldHelper
{
void
operator
()(
SymMatrixProxy
<
Real
,
dim
>
sigma
,
SymMatrixProxy
<
const
Real
,
dim
>
epsilon
,
const
Real
&
mu
,
const
Real
&
nu
)
{
elasticity
.
mu
=
mu
;
elasticity
.
nu
=
nu
;
sigma
=
elasticity
(
epsilon
);
}
influence
::
ElasticHelper
<
dim
>
elasticity
{
0
,
0
};
};
template
<
model_type
type
>
void
HookeField
<
type
>::
apply
(
GridBase
<
Real
>&
strain
,
GridBase
<
Real
>&
stress
)
const
{
constexpr
auto
dim
=
model_type_traits
<
type
>::
dimension
;
// Checking incompressibility
auto
incompressible
=
Loop
::
reduce
<
operation
::
plus
>
([](
Real
nu
)
->
UInt
{
return
nu
>=
0.5
;
},
this
->
template
field
<
Real
>
(
"nu"
));
if
(
incompressible
>
0
)
throw
std
::
range_error
{
TAMAAS_MSG
(
"Incompressibility error, nu = 0.5 somewhere"
)};
std
::
vector
<
influence
::
ElasticHelper
<
dim
>>
hookes
;
const
auto
&
mu
=
this
->
template
field
<
Real
>
(
"mu"
);
const
auto
&
nu
=
this
->
template
field
<
Real
>
(
"nu"
);
hookes
.
reserve
(
mu
.
getNbPoints
());
std
::
transform
(
mu
.
begin
(),
mu
.
end
(),
nu
.
begin
(),
std
::
back_inserter
(
hookes
),
[](
const
Real
&
mu
,
const
Real
&
nu
)
{
return
influence
::
ElasticHelper
<
dim
>
{
mu
,
nu
};
});
// Checking number of components
if
(
strain
.
getNbComponents
()
==
dim
*
dim
)
{
Loop
::
loop
(
[](
MatrixProxy
<
Real
,
dim
,
dim
>
stress
,
MatrixProxy
<
const
Real
,
dim
,
dim
>
strain
,
const
influence
::
ElasticHelper
<
dim
>&
elasticity
)
{
stress
=
elasticity
(
strain
);
},
range
<
MatrixProxy
<
Real
,
dim
,
dim
>>
(
stress
),
range
<
MatrixProxy
<
const
Real
,
dim
,
dim
>>
(
strain
),
hookes
);
}
// in case we have voigt notation
else
if
(
strain
.
getNbComponents
()
==
voigt_size
<
dim
>::
value
)
{
Loop
::
loop
(
[](
SymMatrixProxy
<
Real
,
dim
>
stress
,
SymMatrixProxy
<
const
Real
,
dim
>
strain
,
const
influence
::
ElasticHelper
<
dim
>&
elasticity
)
{
stress
=
elasticity
(
strain
);
},
range
<
SymMatrixProxy
<
Real
,
dim
>>
(
stress
),
range
<
SymMatrixProxy
<
const
Real
,
dim
>>
(
strain
),
hookes
);
}
else
throw
std
::
invalid_argument
{
TAMAAS_MSG
(
"Strain components ("
,
strain
.
getNbComponents
(),
") do not match model type "
,
type
)};
}
/* -------------------------------------------------------------------------- */
#define INSTANTIATE_HOOKE(r, _, type) \
template class Hooke<type>; \
template class HookeField<type>;
BOOST_PP_SEQ_FOR_EACH
(
INSTANTIATE_HOOKE
,
~
,
TAMAAS_MODEL_TYPES
);
#undef INSTANTIATE_HOOKE
}
// namespace tamaas
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