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rTAMAAS tamaas
computes.hh
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/**
* @file
* @section LICENSE
*
* Copyright (©) 2016-2020 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef EIGENVALUES_HH
#define EIGENVALUES_HH
/* -------------------------------------------------------------------------- */
#include "grid.hh"
#include "loop.hh"
#include "model_type.hh"
#include "ranges.hh"
#include "static_types.hh"
#include <boost/preprocessor/seq.hpp>
namespace
tamaas
{
namespace
compute
{
/// Compute eigenvalues of a symmetric matrix field
struct
Eigenvalues
{
template
<
UInt
dim
>
static
void
call
(
Grid
<
Real
,
dim
>&
eigs
,
const
Grid
<
Real
,
dim
>&
field
)
{
Loop
::
loop
([](
auto
eig
,
auto
f
)
{
eig
=
eigenvalues
(
f
);
},
range
<
VectorProxy
<
Real
,
dim
>>
(
eigs
),
range
<
SymMatrixProxy
<
const
Real
,
dim
>>
(
field
));
}
};
/// Compute von Mises stress on a tensor field
struct
VonMises
{
template
<
UInt
dim
>
static
void
call
(
Grid
<
Real
,
dim
>&
vm
,
const
Grid
<
Real
,
dim
>&
stress
)
{
Loop
::
loop
(
[](
Real
&
vm
,
auto
sigma
)
{
SymMatrix
<
Real
,
dim
>
dev
;
dev
.
deviatoric
(
sigma
,
3
);
vm
=
std
::
sqrt
(
1.5
)
*
dev
.
l2norm
();
},
vm
,
range
<
SymMatrixProxy
<
const
Real
,
dim
>>
(
stress
));
}
};
}
// namespace compute
template
<
typename
Compute
>
void
applyCompute
(
model_type
type
,
GridBase
<
Real
>&
result
,
const
GridBase
<
Real
>&
field
)
{
#define APPLY_CASE(_, __, type) \
case type: { \
constexpr UInt dim = model_type_traits<type>::dimension; \
const auto& f = dynamic_cast<const Grid<Real, dim>&>(field); \
auto& e = dynamic_cast<Grid<Real, dim>&>(result); \
Compute::template call<dim>(e, f); \
break; \
}
switch
(
type
)
{
BOOST_PP_SEQ_FOR_EACH
(
APPLY_CASE
,
~
,
(
model_type
::
volume_2d
));
default
:
TAMAAS_EXCEPTION
(
"Model type "
<<
type
<<
" not yet suported for field computation"
);
}
#undef APPLY_CASE
}
void
eigenvalues
(
model_type
type
,
GridBase
<
Real
>&
eigs
,
const
GridBase
<
Real
>&
field
);
void
vonMises
(
model_type
type
,
GridBase
<
Real
>&
eigs
,
const
GridBase
<
Real
>&
field
);
}
// namespace tamaas
#endif
/* EIGENVALUES_HH */
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