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ntn_fricreg_simplified_prakash_clifton.cc
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Sun, Aug 18, 12:15
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rAKA akantu
ntn_fricreg_simplified_prakash_clifton.cc
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/**
* @file ntn_fricreg_simplified_prakash_clifton.cc
* @author David Kammer <david.kammer@epfl.ch>
* @date Mon Sep 2 10:25:58 2013
*
* @brief implementation of simplified prakash clifton with one parameter
*
* @section LICENSE
*
* Copyright (©) 2010-2011 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/>.
*
*/
/* -------------------------------------------------------------------------- */
// simtools
#include "ntn_fricreg_simplified_prakash_clifton.hh"
#include "dumper_text.hh"
__BEGIN_SIMTOOLS__
/* -------------------------------------------------------------------------- */
NTNFricRegSimplifiedPrakashClifton
::
NTNFricRegSimplifiedPrakashClifton
(
NTNBaseContact
*
contact
,
const
FrictionID
&
id
,
const
MemoryID
&
memory_id
)
:
NTNFricRegNoRegularisation
(
contact
,
id
,
memory_id
),
t_star
(
0
,
1
,
0.
,
id
+
":t_star"
,
0.
,
"t_star"
),
spc_internal
(
0
,
1
,
0.
,
id
+
":spc_internal"
,
0.
,
"spc_internal"
)
{
AKANTU_DEBUG_IN
();
NTNFricRegNoRegularisation
::
registerSynchronizedArray
(
this
->
t_star
);
NTNFricRegNoRegularisation
::
registerSynchronizedArray
(
this
->
spc_internal
);
this
->
registerParam
(
"t_star"
,
this
->
t_star
,
_pat_parsmod
,
"time scale of regularisation"
);
this
->
registerParam
(
"spc_internal"
,
this
->
spc_internal
,
_pat_internal
,
""
);
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
NTNFricRegSimplifiedPrakashClifton
::
computeFrictionalStrength
()
{
AKANTU_DEBUG_IN
();
SolidMechanicsModel
&
model
=
this
->
contact
->
getModel
();
Real
delta_t
=
model
.
getTimeStep
();
UInt
nb_contact_nodes
=
this
->
contact
->
getNbContactNodes
();
for
(
UInt
n
=
0
;
n
<
nb_contact_nodes
;
++
n
)
{
Real
alpha
=
delta_t
/
this
->
t_star
(
n
);
this
->
frictional_strength
(
n
)
+=
alpha
*
this
->
spc_internal
(
n
);
this
->
frictional_strength
(
n
)
/=
1
+
alpha
;
}
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
NTNFricRegSimplifiedPrakashClifton
::
setToSteadyState
()
{
AKANTU_DEBUG_IN
();
/// fill the spc_internal array
computeFrictionalStrength
();
/// set strength without regularisation
UInt
nb_contact_nodes
=
this
->
contact
->
getNbContactNodes
();
for
(
UInt
n
=
0
;
n
<
nb_contact_nodes
;
++
n
)
{
this
->
frictional_strength
(
n
)
=
this
->
spc_internal
(
n
);
}
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
NTNFricRegSimplifiedPrakashClifton
::
registerSynchronizedArray
(
SynchronizedArrayBase
&
array
)
{
AKANTU_DEBUG_IN
();
this
->
t_star
.
registerDependingArray
(
array
);
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
NTNFricRegSimplifiedPrakashClifton
::
dumpRestart
(
const
std
::
string
&
file_name
)
const
{
AKANTU_DEBUG_IN
();
this
->
t_star
.
dumpRestartFile
(
file_name
);
this
->
spc_internal
.
dumpRestartFile
(
file_name
);
NTNFricRegNoRegularisation
::
dumpRestart
(
file_name
);
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
NTNFricRegSimplifiedPrakashClifton
::
readRestart
(
const
std
::
string
&
file_name
)
{
AKANTU_DEBUG_IN
();
this
->
t_star
.
readRestartFile
(
file_name
);
this
->
spc_internal
.
readRestartFile
(
file_name
);
NTNFricRegNoRegularisation
::
readRestart
(
file_name
);
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
NTNFricRegSimplifiedPrakashClifton
::
printself
(
std
::
ostream
&
stream
,
int
indent
)
const
{
AKANTU_DEBUG_IN
();
std
::
string
space
;
for
(
Int
i
=
0
;
i
<
indent
;
i
++
,
space
+=
AKANTU_INDENT
);
stream
<<
space
<<
"NTNFricRegSimplifiedPrakashClifton ["
<<
std
::
endl
;
NTNFricRegNoRegularisation
::
printself
(
stream
,
++
indent
);
stream
<<
space
<<
"]"
<<
std
::
endl
;
AKANTU_DEBUG_OUT
();
}
/* -------------------------------------------------------------------------- */
void
NTNFricRegSimplifiedPrakashClifton
::
addDumpFieldToDumper
(
const
std
::
string
&
dumper_name
,
const
std
::
string
&
field_id
)
{
AKANTU_DEBUG_IN
();
#ifdef AKANTU_USE_IOHELPER
// const SynchronizedArray<UInt> * nodal_filter = &(this->contact->getSlaves());
if
(
field_id
==
"t_star"
)
{
this
->
internalAddDumpFieldToDumper
(
dumper_name
,
field_id
,
new
DumperIOHelper
::
NodalField
<
Real
>
(
this
->
t_star
.
getArray
()));
}
else
{
NTNFricRegNoRegularisation
::
addDumpFieldToDumper
(
dumper_name
,
field_id
);
}
#endif
AKANTU_DEBUG_OUT
();
}
__END_SIMTOOLS__
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