Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F90393660
resolution.hh
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Fri, Nov 1, 06:54
Size
9 KB
Mime Type
text/x-c++
Expires
Sun, Nov 3, 06:54 (1 d, 23 h)
Engine
blob
Format
Raw Data
Handle
22067100
Attached To
rAKA akantu
resolution.hh
View Options
/**
* @file resolution.hh
*
* @author Mohit Pundir <mohit.pundir@epfl.ch>
*
* @date creation: Mon Jan 7 2019
* @date last modification: Mon Jan 7 2019
*
* @brief Mother class for all contact resolutions
*
* @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 "aka_factory.hh"
#include "aka_memory.hh"
#include "parsable.hh"
#include "parser.hh"
#include "fe_engine.hh"
#include "contact_element.hh"
#include "resolution_utils.hh"
#include "geometry_utils.hh"
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_RESOLUTION_HH__
#define __AKANTU_RESOLUTION_HH__
/* -------------------------------------------------------------------------- */
namespace akantu {
class Model;
class ContactMechanicsModel;
} // namespace akantu
namespace akantu {
/**
* Interface of all contact resolutions
* Prerequisites for a new resolution
* - inherit from this class
* - implement the following methods:
* \code
*
* virtual void computeNormalForce();
* virtual void computeFrictionForce();
*
* \endcode
*
*/
class Resolution : public Memory,
public Parsable {
/* ------------------------------------------------------------------------ */
/* Constructor/Destructor */
/* ------------------------------------------------------------------------ */
public:
/// instantiate contact resolution with defaults
Resolution(ContactMechanicsModel & model, const ID & id = "");
/// Destructor
~Resolution() override;
protected:
void initialize();
/// computes coordinates of a given element
void computeCoordinates(const Element & , Matrix<Real> &);
/* ------------------------------------------------------------------------ */
/* Functions that resolutions should reimplement for force */
/* ------------------------------------------------------------------------ */
public:
/// computes the force vector due to normal traction
virtual void computeNormalForce(__attribute__((unused)) const ContactElement &,
__attribute__((unused)) Vector<Real> &) {
AKANTU_TO_IMPLEMENT();
}
/// computes the tangential force vector due to frictional traction
virtual void computeTangentialForce(__attribute__((unused)) const ContactElement &,
__attribute__((unused)) Vector<Real> &) {
AKANTU_TO_IMPLEMENT();
}
protected:
/// local computation of trial tangential traction due to friction
virtual void computeTrialTangentialTraction(__attribute__((unused)) const ContactElement &,
__attribute__((unused)) const Matrix<Real> &,
__attribute__((unused)) Vector<Real> &) {
AKANTU_TO_IMPLEMENT();
}
/// local computation of tangential traction due to stick
virtual void computeStickTangentialTraction(__attribute__((unused)) const ContactElement &,
__attribute__((unused)) Vector<Real> &,
__attribute__((unused)) Vector<Real> &) {
AKANTU_TO_IMPLEMENT();
}
/// local computation of tangential traction due to slip
virtual void computeSlipTangentialTraction(__attribute__((unused)) const ContactElement &,
__attribute__((unused)) const Matrix<Real> &,
__attribute__((unused)) Vector<Real> &,
__attribute__((unused)) Vector<Real> &) {
AKANTU_TO_IMPLEMENT();
}
/* ------------------------------------------------------------------------ */
/* Functions that resolutions should reimplement for stiffness */
/* ------------------------------------------------------------------------ */
public:
/// compute the tangent moduli due to normal traction
virtual void computeNormalModuli(__attribute__((unused)) const ContactElement &,
__attribute__((unused)) Matrix<Real> &,
__attribute__((unused)) Vector<Real> &,
__attribute__((unused)) Matrix<Real> & ) {
AKANTU_TO_IMPLEMENT();
}
/// compute the tangent moduli due to tangential traction
virtual void computeTangentialModuli(__attribute__((unused)) const ContactElement &,
__attribute__((unused)) Matrix<Real> &,
__attribute__((unused)) Vector<Real> &,
__attribute__((unused)) Matrix<Real> & ) {
AKANTU_TO_IMPLEMENT();
}
/// compute the tangent moduli due to frictional traction
virtual void computeFrictionalModuli(__attribute__((unused)) Matrix<Real> &,
__attribute__((unused)) Array<Real> &,
__attribute__((unused)) Array<Real> &,
__attribute__((unused)) Array<Real> &,
__attribute__((unused)) Array<Real> &,
__attribute__((unused)) Matrix<Real> &,
__attribute__((unused)) Vector<Real> &,
__attribute__((unused)) ContactElement &) {
AKANTU_TO_IMPLEMENT();
}
/* ------------------------------------------------------------------------ */
/* Methods */
/* ------------------------------------------------------------------------ */
public:
/// assemble the residual for this resolution
void assembleInternalForces(GhostType ghost_type);
/// assemble the stiffness matrix for this resolution
void assembleStiffnessMatrix(GhostType ghost_type);
private:
/// assemble the residual for this resolution
void assembleInternalForces();
/// assemble the local array to global array for a contact element
void assembleLocalToGlobalArray(const ContactElement & , Vector<Real> & , Array<Real> & );
/// assemble the local stiffness to global stiffness for a contact element
void assembleLocalToGlobalMatrix(const ContactElement &, const Matrix<Real> &, SparseMatrix &);
public:
/// function to print the contain of the class
void printself(std::ostream & stream, int indent = 0) const override;
/* ------------------------------------------------------------------------ */
/* Class Members */
/* ------------------------------------------------------------------------ */
protected:
/// friction coefficient : mu
Real mu;
/// spatial dimension
UInt spatial_dimension;
/// is master surface deformable
bool is_master_deformable;
/// Link to the fem object in the model
FEEngine & fem;
/// resolution name
std::string name;
/// model to which the resolution belong
ContactMechanicsModel & model;
};
/// standard output stream operator
inline std::ostream & operator<<(std::ostream & stream,
const Resolution & _this) {
_this.printself(stream);
return stream;
}
} // namespace akantu
/* -------------------------------------------------------------------------- */
namespace akantu {
using ResolutionFactory =
Factory<Resolution, ID, UInt, const ID &, ContactMechanicsModel &, const ID &>;
/// macaulay bracket to convert positive gap to zero
template <typename T>
T macaulay(T var) {return var < 0 ? 0 : var; }
template <typename T>
T heaviside(T var) {return var < 0 ? 0 : 1.0; }
} // namespace akantu
#define INSTANTIATE_RESOLUTION_ONLY(res_name) \
class res_name
#define RESOLUTION_DEFAULT_PER_DIM_ALLOCATOR(id, res_name) \
[](UInt dim, const ID &, ContactMechanicsModel & model, \
const ID & id) -> std::unique_ptr<Resolution> { \
switch (dim) { \
case 1: \
return std::make_unique<res_name>(model, id); \
case 2: \
return std::make_unique<res_name>(model, id); \
case 3: \
return std::make_unique<res_name>(model, id); \
default: \
AKANTU_EXCEPTION("The dimension " \
<< dim << "is not a valid dimension for the contact resolution " \
<< #id); \
} \
}
#define INSTANTIATE_RESOLUTION(id, res_name) \
INSTANTIATE_RESOLUTION_ONLY(res_name); \
static bool resolution_is_alocated_##id[[gnu::unused]] = \
ResolutionFactory::getInstance().registerAllocator( \
#id, RESOLUTION_DEFAULT_PER_DIM_ALLOCATOR(id, res_name))
#endif /* __AKANTU_RESOLUTION_HH__ */
Event Timeline
Log In to Comment