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rAKA akantu
contact_mechanics_model.hh
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/**
* @file contact_mechanics_model.hh
*
* @author Mohit Pundir <mohit.pundir@epfl.ch>
*
* @date creation: Tue Jul 27 2010
* @date last modification: Wed Feb 21 2018
*
* @brief Model of Contact Mechanics
*
* @section LICENSE
*
* Copyright (©) 2010-2018 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/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "boundary_condition.hh"
#include "contact_detector.hh"
#include "data_accessor.hh"
#include "fe_engine.hh"
#include "model.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_CONTACT_MECHANICS_MODEL_HH__
#define __AKANTU_CONTACT_MECHANICS_MODEL_HH__
namespace
akantu
{
class
Resolution
;
template
<
ElementKind
kind
,
class
IntegrationOrderFunctor
>
class
IntegratorGauss
;
template
<
ElementKind
kind
>
class
ShapeLagrange
;
}
// namespace akantu
/* -------------------------------------------------------------------------- */
namespace
akantu
{
/* -------------------------------------------------------------------------- */
class
ContactMechanicsModel
:
public
Model
,
public
DataAccessor
<
Element
>
,
public
DataAccessor
<
UInt
>
,
public
BoundaryCondition
<
ContactMechanicsModel
>
{
/* ------------------------------------------------------------------------ */
/* Constructors/Destructors */
/* ------------------------------------------------------------------------ */
using
MyFEEngineType
=
FEEngineTemplate
<
IntegratorGauss
,
ShapeLagrange
>
;
public
:
ContactMechanicsModel
(
Mesh
&
mesh
,
UInt
spatial_dimension
=
_all_dimensions
,
const
ID
&
id
=
"contact_mechanics_model"
,
const
MemoryID
&
memory_id
=
0
,
std
::
shared_ptr
<
DOFManager
>
dof_manager
=
nullptr
,
const
ModelType
model_type
=
ModelType
::
_contact_mechanics_model
);
~
ContactMechanicsModel
()
override
;
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
protected
:
/// initialize completely the model
void
initFullImpl
(
const
ModelOptions
&
options
)
override
;
/// allocate all vectors
void
initSolver
(
TimeStepSolverType
,
NonLinearSolverType
)
override
;
/// initialize all internal arrays for resolutions
void
initResolutions
();
/// initialize the modelType
void
initModel
()
override
;
/// call back for the solver, computes the force residual
void
assembleResidual
()
override
;
/// get the type of matrix needed
MatrixType
getMatrixType
(
const
ID
&
matrix_id
)
override
;
/// callback for the solver, this assembles different matrices
void
assembleMatrix
(
const
ID
&
matrix_id
)
override
;
/// callback for the solver, this assembles the stiffness matrix
void
assembleLumpedMatrix
(
const
ID
&
matrix_id
)
override
;
/// get some default values for derived classes
std
::
tuple
<
ID
,
TimeStepSolverType
>
getDefaultSolverID
(
const
AnalysisMethod
&
method
)
override
;
ModelSolverOptions
getDefaultSolverOptions
(
const
TimeStepSolverType
&
type
)
const
;
/// callback for the solver, this is called at beginning of solve
void
beforeSolveStep
()
override
;
/// callback for the solver, this is called at end of solve
void
afterSolveStep
()
override
;
/// function to print the containt of the class
void
printself
(
std
::
ostream
&
stream
,
int
indent
=
0
)
const
override
;
/* ------------------------------------------------------------------------ */
/* Contact Detection */
/* ------------------------------------------------------------------------ */
public
:
void
search
();
void
computeNodalAreas
();
/* ------------------------------------------------------------------------ */
/* Contact Resolution */
/* ------------------------------------------------------------------------ */
public
:
/// register an empty contact resolution of a given type
Resolution
&
registerNewResolution
(
const
ID
&
res_name
,
const
ID
&
res_type
,
const
ID
&
opt_param
);
protected
:
/// register a resolution in the dynamic database
Resolution
&
registerNewResolution
(
const
ParserSection
&
res_section
);
/// read the resolution files to instantiate all the resolutions
void
instantiateResolutions
();
/* ------------------------------------------------------------------------ */
/* Solver Interface */
/* ------------------------------------------------------------------------ */
public
:
/// assembles the contact stiffness matrix
virtual
void
assembleStiffnessMatrix
();
/// assembles the contant internal forces
virtual
void
assembleInternalForces
();
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
FEEngine
&
getFEEngineBoundary
(
const
ID
&
name
=
""
)
override
;
/* ------------------------------------------------------------------------ */
/* Dumpable interface */
/* ------------------------------------------------------------------------ */
public
:
std
::
shared_ptr
<
dumper
::
Field
>
createNodalFieldReal
(
const
std
::
string
&
field_name
,
const
std
::
string
&
group_name
,
bool
padding_flag
)
override
;
std
::
shared_ptr
<
dumper
::
Field
>
createNodalFieldBool
(
const
std
::
string
&
field_name
,
const
std
::
string
&
group_name
,
bool
padding_flag
)
override
;
void
dump
()
override
;
virtual
void
dump
(
UInt
step
);
virtual
void
dump
(
Real
time
,
UInt
step
);
virtual
void
dump
(
const
std
::
string
&
dumper_name
);
virtual
void
dump
(
const
std
::
string
&
dumper_name
,
UInt
step
);
virtual
void
dump
(
const
std
::
string
&
dumper_name
,
Real
time
,
UInt
step
);
/* ------------------------------------------------------------------------ */
/* Data Accessor inherited members */
/* ------------------------------------------------------------------------ */
public
:
UInt
getNbData
(
const
Array
<
Element
>
&
elements
,
const
SynchronizationTag
&
tag
)
const
override
;
void
packData
(
CommunicationBuffer
&
buffer
,
const
Array
<
Element
>
&
elements
,
const
SynchronizationTag
&
tag
)
const
override
;
void
unpackData
(
CommunicationBuffer
&
buffer
,
const
Array
<
Element
>
&
elements
,
const
SynchronizationTag
&
tag
)
override
;
UInt
getNbData
(
const
Array
<
UInt
>
&
dofs
,
const
SynchronizationTag
&
tag
)
const
override
;
void
packData
(
CommunicationBuffer
&
buffer
,
const
Array
<
UInt
>
&
dofs
,
const
SynchronizationTag
&
tag
)
const
override
;
void
unpackData
(
CommunicationBuffer
&
buffer
,
const
Array
<
UInt
>
&
dofs
,
const
SynchronizationTag
&
tag
)
override
;
protected
:
/// contact detection class
friend
class
ContactDetector
;
/// contact resolution class
friend
class
Resolution
;
/* ------------------------------------------------------------------------ */
/* Accessors */
/* ------------------------------------------------------------------------ */
public
:
/// return the dimension of the system space
AKANTU_GET_MACRO
(
SpatialDimension
,
Model
::
spatial_dimension
,
UInt
);
/// get the ContactMechanicsModel::displacement vector
AKANTU_GET_MACRO
(
Displacement
,
*
displacement
,
Array
<
Real
>
&
);
/// get the ContactMechanicsModel::increment vector \warn only consistent
/// if ContactMechanicsModel::setIncrementFlagOn has been called before
AKANTU_GET_MACRO
(
Increment
,
*
displacement_increment
,
Array
<
Real
>
&
);
/// get the ContactMechanics::internal_force vector (internal forces)
AKANTU_GET_MACRO
(
InternalForce
,
*
internal_force
,
Array
<
Real
>
&
);
/// get the ContactMechanicsModel::external_force vector (external forces)
AKANTU_GET_MACRO
(
ExternalForce
,
*
external_force
,
Array
<
Real
>
&
);
/// get the ContactMechanics::normal_force vector (normal forces)
AKANTU_GET_MACRO
(
NormalForce
,
*
normal_force
,
Array
<
Real
>
&
);
/// get the ContactMechanics::tangential_force vector (friction forces)
AKANTU_GET_MACRO
(
TangentialForce
,
*
tangential_force
,
Array
<
Real
>
&
);
/// get the ContactMechanicsModel::force vector (external forces)
Array
<
Real
>
&
getForce
()
{
AKANTU_DEBUG_WARNING
(
"getForce was maintained for backward compatibility, "
"use getExternalForce instead"
);
return
*
external_force
;
}
/// get the ContactMechanics::blocked_dofs vector
AKANTU_GET_MACRO
(
BlockedDOFs
,
*
blocked_dofs
,
Array
<
Real
>
&
);
/// get the ContactMechanics::gaps (contact gaps)
AKANTU_GET_MACRO
(
Gaps
,
*
gaps
,
Array
<
Real
>
&
);
/// get the ContactMechanics::normals (normals on slave nodes)
AKANTU_GET_MACRO
(
Normals
,
*
normals
,
Array
<
Real
>
&
);
/// get the ContactMechanics::areas (nodal areas)
AKANTU_GET_MACRO
(
NodalArea
,
*
nodal_area
,
Array
<
Real
>
&
);
/// get the ContactMechanics::areas (nodal areas)
AKANTU_GET_MACRO
(
StickProjections
,
*
stick_projections
,
Array
<
Real
>
&
);
/// get the ContactMechanics::areas (nodal areas)
AKANTU_GET_MACRO
(
Projections
,
*
projections
,
Array
<
Real
>
&
);
/// get the ContactMechanics::stick_or_slip vector (slip/stick
/// state)
AKANTU_GET_MACRO
(
StickSlip
,
*
stick_or_slip
,
Array
<
Real
>
&
);
/// get contact detector
AKANTU_GET_MACRO_NOT_CONST
(
ContactDetector
,
*
detector
,
ContactDetector
&
);
/// get the contact elements
inline
Array
<
ContactElement
>
&
getContactElements
()
{
return
contact_elements
;
}
/// get the current positions of the nodes
inline
Array
<
Real
>
&
getPositions
()
{
return
detector
->
getPositions
();
}
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
private
:
/// tells if the resolutions are instantiated
bool
are_resolutions_instantiated
;
/// displacements array
Array
<
Real
>
*
displacement
{
nullptr
};
/// increment of displacement
Array
<
Real
>
*
displacement_increment
{
nullptr
};
/// contact forces array
Array
<
Real
>
*
internal_force
{
nullptr
};
/// external forces array
Array
<
Real
>
*
external_force
{
nullptr
};
/// normal force array
Array
<
Real
>
*
normal_force
{
nullptr
};
/// friction force array
Array
<
Real
>
*
tangential_force
{
nullptr
};
/// boundary vector
Array
<
Real
>
*
blocked_dofs
{
nullptr
};
/// array to store gap between slave and master
Array
<
Real
>
*
gaps
{
nullptr
};
/// array to store normals from master to slave
Array
<
Real
>
*
normals
{
nullptr
};
/// array to store tangents on the master element
Array
<
Real
>
*
tangents
{
nullptr
};
/// array to store nodal areas
Array
<
Real
>
*
nodal_area
{
nullptr
};
/// array to store stick/slip state :
Array
<
Real
>
*
stick_or_slip
{
nullptr
};
/// array to store stick point projection in covariant basis
Array
<
Real
>
*
stick_projections
{
nullptr
};
// array to store projections in covariant basis
Array
<
Real
>
*
projections
{
nullptr
};
/// contact detection
std
::
unique_ptr
<
ContactDetector
>
detector
;
/// list of contact resolutions
std
::
vector
<
std
::
unique_ptr
<
Resolution
>>
resolutions
;
/// mapping between resolution name and resolution internal id
std
::
map
<
std
::
string
,
UInt
>
resolutions_names_to_id
;
///
Array
<
ContactElement
>
contact_elements
;
};
}
// namespace akantu
/* ------------------------------------------------------------------------ */
/* inline functions */
/* ------------------------------------------------------------------------ */
#include "parser.hh"
#include "resolution.hh"
/* ------------------------------------------------------------------------ */
#endif
/* __AKANTU_CONTACT_MECHANICS_MODEL_HH__ */
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