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ntn_base_contact.hh
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Mon, Sep 23, 14:14
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rAKA akantu
ntn_base_contact.hh
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/**
* @file ntn_base_contact.hh
*
* @author David Simon Kammer <david.kammer@epfl.ch>
*
* @date creation: Tue Dec 02 2014
* @date last modification: Fri Feb 23 2018
*
* @brief base contact for ntn and ntrf contact
*
* @section LICENSE
*
* Copyright (©) 2015-2018 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AST_NTN_BASE_CONTACT_HH__
#define __AST_NTN_BASE_CONTACT_HH__
/* -------------------------------------------------------------------------- */
// akantu
#include "aka_csr.hh"
#include "solid_mechanics_model.hh"
// simtools
#include "synchronized_array.hh"
namespace
akantu
{
class
NTNBaseContact
;
/* -------------------------------------------------------------------------- */
// class NTNContactSynchElementFilter : public SynchElementFilter {
// public:
// // constructor
// NTNContactSynchElementFilter(NTNBaseContact & contact);
// // answer to: do we need this element ?
// virtual bool operator()(const Element & e);
// private:
// const NTNBaseContact & contact;
// const ElementTypeMapArray<UInt> & connectivity;
// };
/* -------------------------------------------------------------------------- */
class
NTNBaseContact
:
protected
Memory
,
public
DataAccessor
<
Element
>
,
public
Dumpable
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
NTNBaseContact
(
SolidMechanicsModel
&
model
,
const
ID
&
id
=
"contact"
,
const
MemoryID
&
memory_id
=
0
);
virtual
~
NTNBaseContact
();
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public
:
/// initializes ntn contact parallel
virtual
void
initParallel
();
/// add split node
virtual
void
addSplitNode
(
UInt
node
);
/// update normals, lumped boundary, and impedance
virtual
void
updateInternalData
();
/// update (compute the normals)
virtual
void
updateNormals
()
=
0
;
/// update the lumped boundary B matrix
virtual
void
updateLumpedBoundary
();
/// update the impedance matrix
virtual
void
updateImpedance
()
=
0
;
/// compute the normal contact force
virtual
void
computeContactPressure
();
/// impose the normal contact force
virtual
void
applyContactPressure
();
/// register synchronizedarrays for sync
virtual
void
registerSynchronizedArray
(
SynchronizedArrayBase
&
array
);
/// dump restart file
virtual
void
dumpRestart
(
const
std
::
string
&
file_name
)
const
;
/// read restart file
virtual
void
readRestart
(
const
std
::
string
&
file_name
);
/// compute the normal gap
virtual
void
computeNormalGap
(
Array
<
Real
>
&
gap
)
const
=
0
;
/// compute relative normal field (only value that has to be multiplied with
/// the normal)
/// relative to master nodes
virtual
void
computeRelativeNormalField
(
const
Array
<
Real
>
&
field
,
Array
<
Real
>
&
rel_normal_field
)
const
=
0
;
/// compute relative tangential field (complet array)
/// relative to master nodes
virtual
void
computeRelativeTangentialField
(
const
Array
<
Real
>
&
field
,
Array
<
Real
>
&
rel_tang_field
)
const
=
0
;
/// function to print the contain of the class
virtual
void
printself
(
std
::
ostream
&
stream
,
int
indent
=
0
)
const
;
protected
:
/// updateLumpedBoundary
virtual
void
internalUpdateLumpedBoundary
(
const
Array
<
UInt
>
&
nodes
,
const
ElementTypeMapArray
<
UInt
>
&
elements
,
SynchronizedArray
<
Real
>
&
boundary
);
// to find the slave_elements or master_elements
virtual
void
findBoundaryElements
(
const
Array
<
UInt
>
&
interface_nodes
,
ElementTypeMapArray
<
UInt
>
&
elements
);
/// synchronize arrays
virtual
void
syncArrays
(
SyncChoice
sync_choice
);
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
inline
UInt
getNbData
(
const
Array
<
Element
>
&
elements
,
const
SynchronizationTag
&
tag
)
const
override
;
inline
void
packData
(
CommunicationBuffer
&
buffer
,
const
Array
<
Element
>
&
elements
,
const
SynchronizationTag
&
tag
)
const
override
;
inline
void
unpackData
(
CommunicationBuffer
&
buffer
,
const
Array
<
Element
>
&
elements
,
const
SynchronizationTag
&
tag
)
override
;
/* ------------------------------------------------------------------------ */
/* Dumpable */
/* ------------------------------------------------------------------------ */
public
:
virtual
void
addDumpFieldToDumper
(
const
std
::
string
&
dumper_name
,
const
std
::
string
&
field_id
);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
AKANTU_GET_MACRO
(
Model
,
model
,
SolidMechanicsModel
&
)
AKANTU_GET_MACRO
(
Slaves
,
slaves
,
const
SynchronizedArray
<
UInt
>
&
)
AKANTU_GET_MACRO
(
Normals
,
normals
,
const
SynchronizedArray
<
Real
>
&
)
AKANTU_GET_MACRO
(
ContactPressure
,
contact_pressure
,
const
SynchronizedArray
<
Real
>
&
)
AKANTU_GET_MACRO
(
LumpedBoundarySlaves
,
lumped_boundary_slaves
,
const
SynchronizedArray
<
Real
>
&
)
AKANTU_GET_MACRO
(
Impedance
,
impedance
,
const
SynchronizedArray
<
Real
>
&
)
AKANTU_GET_MACRO
(
IsInContact
,
is_in_contact
,
const
SynchronizedArray
<
bool
>
&
)
AKANTU_GET_MACRO
(
SlaveElements
,
slave_elements
,
const
ElementTypeMapArray
<
UInt
>
&
)
AKANTU_GET_MACRO
(
SynchronizerRegistry
,
*
synch_registry
,
SynchronizerRegistry
&
)
/// get number of nodes that are in contact (globally, on all procs together)
/// is_in_contact = true
virtual
UInt
getNbNodesInContact
()
const
;
/// get index of node in either slaves or masters array
/// if node is in neither of them, return -1
virtual
Int
getNodeIndex
(
UInt
node
)
const
;
/// get number of contact nodes: nodes in the system locally (on this proc)
/// is_in_contact = true and false, because just in the system
virtual
UInt
getNbContactNodes
()
const
{
return
this
->
slaves
.
size
();
}
bool
isNTNContact
()
const
{
return
this
->
is_ntn_contact
;
}
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected
:
typedef
std
::
set
<
const
ElementGroup
*>
SurfacePtrSet
;
SolidMechanicsModel
&
model
;
/// array of slave nodes
SynchronizedArray
<
UInt
>
slaves
;
/// array of normals
SynchronizedArray
<
Real
>
normals
;
/// array indicating if nodes are in contact
SynchronizedArray
<
Real
>
contact_pressure
;
/// array indicating if nodes are in contact
SynchronizedArray
<
bool
>
is_in_contact
;
/// boundary matrix for slave nodes
SynchronizedArray
<
Real
>
lumped_boundary_slaves
;
/// impedance matrix
SynchronizedArray
<
Real
>
impedance
;
/// contact surface
SurfacePtrSet
contact_surfaces
;
/// element list for dump and lumped_boundary
ElementTypeMapArray
<
UInt
>
slave_elements
;
CSR
<
Element
>
node_to_elements
;
/// parallelisation
std
::
unique_ptr
<
SynchronizerRegistry
>
synch_registry
;
std
::
unique_ptr
<
ElementSynchronizer
>
synchronizer
;
bool
is_ntn_contact
{
true
};
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
#include "ntn_base_contact_inline_impl.cc"
/// standard output stream operator
inline
std
::
ostream
&
operator
<<
(
std
::
ostream
&
stream
,
const
NTNBaseContact
&
_this
)
{
_this
.
printself
(
stream
);
return
stream
;
}
}
// namespace akantu
#endif
/* __AST_NTN_BASE_CONTACT_HH__ */
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