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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2014 by The University of Queensland //
// Centre for Geoscience Computing //
// http://earth.uq.edu.au/centre-geoscience-computing //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.apache.org/licenses/LICENSE-2.0 //
// //
/////////////////////////////////////////////////////////////
#ifndef __ROTBONDEDINTERACTION_H
#define __ROTBONDEDINTERACTION_H
// -- project includes --
#include "Model/RotPairInteraction.h"
#include "Model/RotParticle.h"
#include "Model/BondedInteractionCpData.h"
#include "Model/IGParam.h"
#include "Foundation/vec3.h"
// -- I/O includes --
#include <iostream>
using std::ostream;
/*!
\struct CRotBondedIGP
\brief Interaction parameters for bonded interaction between rotational particles
\author Shane Latham, Steffen Abe
$Revision$
$Date$
*/
double calc_angle( double , double ) ;
class CRotBondedIGP : public AIGParam
{
public:
CRotBondedIGP();
CRotBondedIGP(
const std::string &name,
double kr,
double ks,
double kt,
double kb,
double max_nForce,
double max_shForce,
double max_tMoment,
double max_bMoment,
int tag,
bool scaling,
bool AmeanR_scaling,
double truncated,
double beta1,
double beta2
);
CRotBondedIGP(
const std::string &name,
double youngsModulus,
double poissonsRatio,
double cohesion,
double tanAngle,
int tag,
bool AmeanR_scaling,
double truncated,
double beta1,
double beta2
);
virtual std::string getTypeString() const
{
return "RotBonded";
}
double kr,ks,kt,kb ;
double max_nForce, max_shForce,max_tMoment, max_bMoment;
int tag;
bool scaling;
bool meanR_scaling;
double truncated;
double beta1;
double beta2;
};
/*!
\class CRotBondedInteraction
\brief Elastic interaction between bonded particles between rotational particles
\author Shane Latham, Steffen Abe
$Revision$
$Date$
*/
class CRotBondedInteraction : public ARotPairInteraction
{
public: // types
typedef CRotBondedIGP ParameterType;
/**
* Used by PIS to save/load check-point data for objects of this type.
*/
typedef BondedInteractionCpData CheckPointable;
typedef double (CRotBondedInteraction::* ScalarFieldFunction)() const;
typedef pair<bool,double> (CRotBondedInteraction::* CheckedScalarFieldFunction)() const;
typedef Vec3 (CRotBondedInteraction::* VectorFieldFunction)() const;
private:
// protected:
double m_dist; //!< current distance, cached from last calcForces()
double m_r0; //!< equilibrium separation
double m_kr ; //!< spring constant
double m_ks ;
double m_kb ;
double m_kt ;
double m_max_nForce; // always >0
double m_max_shForce ;
double m_max_tMoment ;
double m_max_bMoment ;
double m_nForce; // >0, pulling; <0 , compressing
double m_shForce ; // always >0
double m_tMoment ;
double m_bMoment ;
Vec3 m_force; //!< current force, cached for E_pot calculation
Vec3 m_moment ;
Vec3 m_cpos; // ?
Vec3 m_D; //!< initial positions of the particles
int m_tag;
bool m_scaling;
bool m_meanR_scaling;
double m_truncated;
double m_beta1;
double m_beta2;
public:
CRotBondedInteraction();
CRotBondedInteraction(CRotParticle*,CRotParticle*,const CRotBondedIGP&);
virtual ~CRotBondedInteraction();
static ScalarFieldFunction getScalarFieldFunction(const string&);
static CheckedScalarFieldFunction getCheckedScalarFieldFunction(const string&);
static VectorFieldFunction getVectorFieldFunction(const string&);
static string getType(){return "RotBonded";};
int getTag() const;
void setTag(int tag);
void calcForces();
//void setBreak(double);
bool broken();
double getPotentialEnergy() const;
double getNormalPotentialEnergy() const;
double getShearPotentialEnergy() const;
double getTwistPotentialEnergy() const;
double getBendPotentialEnergy() const;
double getCriterion() const;
Vec3 getForce() const;
Vec3 getNormalForce() const;
Vec3 getTangentialForce() const;
virtual Vec3 getPos() const {return m_cpos;};
Vec3 getCentrePtDiff() const;
Vec3 getInitialCentrePtDiff() const;
Vec3 getInitialMidPoint() const;
Vec3 getP2ShearForcePt() const;
Vec3 getP1ShearForcePt() const;
Vec3 getContactPoint() const;
Vec3 getShearDiff() const;
friend ostream& operator<<(ostream&,const CRotBondedInteraction&);
friend class TML_PackedMessageInterface;
virtual void saveCheckPointData(std::ostream &oStream);
virtual void loadCheckPointData(std::istream &iStream);
// save/load of restart parameters
virtual void saveRestartData(std::ostream &oStream);
virtual void loadRestartData(std::istream &iStream);
};
#endif //__BONDEDINTERACTION_H
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