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IrreversibleAdhesiveInteraction.cc
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25 
26 
29 #include "Particles/BaseParticle.h"
30 #include "InteractionHandler.h"
31 #include <iomanip>
32 #include <fstream>
33 
40  : BaseInteraction(P, I, timeStamp), ReversibleAdhesiveInteraction(P, I, timeStamp)
41 {
42  wasInContact_=false;
43 #ifdef DEBUG_CONSTRUCTOR
44  std::cout<<"IrreversibleAdhesiveInteraction::IrreversibleAdhesiveInteraction() finished"<<std::endl;
45 #endif
46 }
47 
53 {
56 #ifdef DEBUG_CONSTRUCTOR
57  std::cout<<"IrreversibleAdhesiveInteraction::IrreversibleAdhesiveInteraction(const IrreversibleAdhesiveInteraction &p finished"<<std::endl;
58 #endif
59 }
64 {
65 #ifdef DEBUG_DESTRUCTOR
66  std::cout<<"IrreversibleAdhesiveInteraction::~IrreversibleAdhesiveInteraction() finished"<<std::endl;
67 #endif
68 }
72 void IrreversibleAdhesiveInteraction::write(std::ostream& os) const
73 {
74  os << " wasInContact " << wasInContact_;
75 }
80 {
81  std::string dummy;
82  is >> dummy >> wasInContact_;
83 }
88 {
89  const IrreversibleAdhesiveSpecies* species = getSpecies();
90  if (getOverlap()>=0)
91  {
92  wasInContact_=true;
93  addForce(getNormal() * (-species->getAdhesionForceMax()));
94  }
95  else if (wasInContact_)
96  {
97  addForce(getNormal() * (-species->getAdhesionStiffness() *getOverlap() - species->getAdhesionForceMax()));
98  }
99 }
104 {
105  return dynamic_cast<const IrreversibleAdhesiveSpecies *>(getBaseSpecies());
106 }
111 {
112  return "IrreversibleAdhesive";
113 }
114 
121 {
122  if (!wasInContact_)
123  return 0.0;
124  else if (getOverlap() <= 0)
125  return -0.5 * getSpecies()->getAdhesionStiffness() * mathsFunc::square(getOverlap() + getSpecies()->getInteractionDistance());
126  else
127  return -getSpecies()->getAdhesionForceMax() * getOverlap()
128  - 0.5 * getSpecies()->getAdhesionStiffness() * mathsFunc::square(getSpecies()->getInteractionDistance());
129 }
void read(std::istream &is)
Interaction read function, which accepts an std::istream as input.
Mdouble getAdhesionForceMax() const
Allows the spring constant to be accessed.
void write(std::ostream &os) const
Interaction print function, which accepts an std::ostream as input.
double Mdouble
T square(T val)
squares a number
Definition: ExtendedMath.h:91
Stores information about interactions between two interactable objects; often particles but could be ...
void computeAdhesionForce()
Computes the Adhesive force.
const BaseSpecies * getBaseSpecies() const
Return a constant point to BaseSpecies of the interaction.
const Vec3D & getNormal() const
Gets the normal vector between the two interacting objects.
Mdouble getOverlap() const
Returns a Mdouble with the current overlap between the two interacting objects.
void addForce(Vec3D force)
add an force increment to the total force.
std::string getBaseName() const
Returns the name of the interaction, see Interaction.h.
IrreversibleAdhesiveSpecies contains the parameters used to describe a linear irreversible short-rang...
const IrreversibleAdhesiveSpecies * getSpecies() const
A dynamic_cast of BaseSpecies type pointer to a pointer of type IrreversibleAdhesiveSpecies.
IrreversibleAdhesiveInteraction(BaseInteractable *P, BaseInteractable *I, Mdouble timeStamp)
Constructor.
Defines the basic properties that a interactable object can have.
Mdouble getElasticEnergy() const
Returns the elastic energy stored in the adhesive spring.
bool wasInContact_
A history parameter to store if the particles were in contact or not. Useful to compute adhesive forc...
Mdouble getAdhesionStiffness() const
Allows the spring constant to be accessed.