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ntn_contact.hh
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rAKA akantu
ntn_contact.hh
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/**
* @file ntn_contact.hh
*
* @author David Simon Kammer <david.kammer@epfl.ch>
*
* @date creation: Tue Dec 02 2014
* @date last modification: Fri Feb 23 2018
*
* @brief contact for node to node discretization
*
*
* 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_CONTACT_HH_
#define AST_NTN_CONTACT_HH_
/* -------------------------------------------------------------------------- */
// simtools
#include "ntn_base_contact.hh"
namespace
akantu
{
/* -------------------------------------------------------------------------- */
class
NTNContact
:
public
NTNBaseContact
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
public
:
NTNContact
(
SolidMechanicsModel
&
model
,
const
ID
&
id
=
"contact"
,
const
MemoryID
&
memory_id
=
0
);
virtual
~
NTNContact
(){};
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public
:
/// add surface pair and pair nodes according to the surface normal
void
addSurfacePair
(
const
ID
&
slave
,
const
ID
&
master
,
UInt
surface_normal_dir
);
/// fills the pairs vector with interface node pairs (*,0)=slaves,
/// (*,1)=masters
static
void
pairInterfaceNodes
(
const
ElementGroup
&
slave_boundary
,
const
ElementGroup
&
master_boundary
,
UInt
surface_normal_dir
,
const
Mesh
&
mesh
,
Array
<
UInt
>
&
pairs
);
// add node pairs from a list with pairs(*,0)=slaves and pairs(*,1)=masters
void
addNodePairs
(
const
Array
<
UInt
>
&
pairs
);
/// add node pair
void
addSplitNode
(
UInt
slave
,
UInt
master
)
override
;
/// update (compute the normals on the master nodes)
void
updateNormals
()
override
;
/// update the lumped boundary B matrix
void
updateLumpedBoundary
()
override
;
/// update the impedance matrix
void
updateImpedance
()
override
;
/// impose the normal contact force
void
applyContactPressure
()
override
;
/// dump restart file
void
dumpRestart
(
const
std
::
string
&
file_name
)
const
override
;
/// read restart file
void
readRestart
(
const
std
::
string
&
file_name
)
override
;
/// compute the normal gap
void
computeNormalGap
(
Array
<
Real
>
&
gap
)
const
override
{
this
->
computeRelativeNormalField
(
this
->
model
.
getCurrentPosition
(),
gap
);
};
/// compute relative normal field (only value that has to be multiplied with
/// the normal)
/// relative to master nodes
void
computeRelativeNormalField
(
const
Array
<
Real
>
&
field
,
Array
<
Real
>
&
rel_normal_field
)
const
override
;
/// compute relative tangential field (complet array)
/// relative to master nodes
void
computeRelativeTangentialField
(
const
Array
<
Real
>
&
field
,
Array
<
Real
>
&
rel_tang_field
)
const
override
;
/// function to print the contain of the class
void
printself
(
std
::
ostream
&
stream
,
int
indent
=
0
)
const
override
;
protected
:
/// synchronize arrays
void
syncArrays
(
SyncChoice
sync_choice
)
override
;
/* ------------------------------------------------------------------------ */
/* Dumpable */
/* ------------------------------------------------------------------------ */
public
:
void
addDumpFieldToDumper
(
const
std
::
string
&
dumper_name
,
const
std
::
string
&
field_id
)
override
;
// virtual void addDumpFieldVector(const std::string & field_id);
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
AKANTU_GET_MACRO
(
Masters
,
masters
,
const
SynchronizedArray
<
UInt
>
&
)
AKANTU_GET_MACRO
(
LumpedBoundaryMasters
,
lumped_boundary_masters
,
const
SynchronizedArray
<
Real
>
&
)
/// get interface node pairs (*,0) are slaves, (*,1) are masters
void
getNodePairs
(
Array
<
UInt
>
&
pairs
)
const
;
/// get index of node in either slaves or masters array
/// if node is in neither of them, return -1
Int
getNodeIndex
(
UInt
node
)
const
override
;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private
:
/// array of master nodes
SynchronizedArray
<
UInt
>
masters
;
/// lumped boundary of master nodes
SynchronizedArray
<
Real
>
lumped_boundary_masters
;
// element list for dump and lumped_boundary
ElementTypeMapArray
<
UInt
>
master_elements
;
};
/* -------------------------------------------------------------------------- */
/* inline functions */
/* -------------------------------------------------------------------------- */
//#include "ntn_contact_inline_impl.hh"
/// standard output stream operator
inline
std
::
ostream
&
operator
<<
(
std
::
ostream
&
stream
,
const
NTNContact
&
_this
)
{
_this
.
printself
(
stream
);
return
stream
;
}
}
// namespace akantu
#endif
/* AST_NTN_CONTACT_HH_ */
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