ParhamiMcMeekingSinterSpecies Class Reference

ParhamiMcMeekingSinterSpecies contains the parameters used to describe a linear reversible short-range force. More...

#include <ParhamiMcMeekingSinterSpecies.h>

Inheritance diagram for ParhamiMcMeekingSinterSpecies:

Public Types
typedef ParhamiMcMeekingSinterInteraction	InteractionType
	The correct Interaction type for this AdhesiveForceSpecies. More...

Public Member Functions
	ParhamiMcMeekingSinterSpecies ()
	The default constructor. More...
	ParhamiMcMeekingSinterSpecies (const ParhamiMcMeekingSinterSpecies &s)
	The default constructor. More...
	~ParhamiMcMeekingSinterSpecies ()
	The default constructor. More...
void	read (std::istream &is)
	Reads the species properties from an input stream. More...
void	write (std::ostream &os) const
	Writes the species properties to an output stream. More...
std::string	getBaseName () const
	Used in Species::getName to obtain a unique name for each Species. More...
void	mix (ParhamiMcMeekingSinterSpecies *S, ParhamiMcMeekingSinterSpecies *T)
	creates default values for mixed species More...
void	set (Mdouble alpha, Mdouble beta, Mdouble atomicVolume, Mdouble surfaceEnergy, Mdouble thicknessDiffusion, Mdouble activationEnergy, Mdouble temperature, Mdouble pseudoSlidingFrictionCoefficient)
Mdouble	getViscosityCoefficient () const
Mdouble	getAdhesionCoefficient () const
Mdouble	getSlidingFrictionCoefficient () const
Public Member Functions inherited from BaseAdhesiveForce
virtual void	setInteractionDistance ()
Public Member Functions inherited from BaseForce
BaseSpecies *	getBaseSpecies () const
void	setBaseSpecies (BaseSpecies *baseSpecies)

Private Attributes
Mdouble	alpha_
	viscous force is adhesionCoefficient_*temperature*contactRadius^4*normalRelativeVelocity More...
Mdouble	beta_
Mdouble	atomicVolume_
Mdouble	surfaceEnergy_
Mdouble	thicknessDiffusion_
Mdouble	activationEnergy_
Mdouble	temperature_
Mdouble	pseudoSlidingFrictionCoefficient_
Mdouble	viscosityCoefficient_
	viscous force is viscosityCoefficient_*contactRadius^4*normalRelativeVelocity More...
Mdouble	adhesionCoefficient_
	adhesion force is adhesionCoefficient_*radius More...
Mdouble	slidingFrictionCoefficient_
	tangential force is slidingFrictionCoefficient_*contactRadius^2*radius*tangentialRelativeVelocity More...

Detailed Description

ParhamiMcMeekingSinterSpecies contains the parameters used to describe a linear reversible short-range force.

See ParhamiMcMeekingSinterInteraction::computeForce for a description of the force law.

Member Typedef Documentation

InteractionType

typedef ParhamiMcMeekingSinterInteraction ParhamiMcMeekingSinterSpecies::InteractionType

The correct Interaction type for this AdhesiveForceSpecies.

Constructor & Destructor Documentation

ParhamiMcMeekingSinterSpecies() [1/2]

ParhamiMcMeekingSinterSpecies::ParhamiMcMeekingSinterSpecies

(

)

The default constructor.

Todo:

: implement initial/read/write values

{
//    adhesionForceMax_ = 0;
//    adhesionStiffness_ = 0;
#ifdef DEBUG_CONSTRUCTOR
    std::cout<<"ParhamiMcMeekingSinterSpecies::ParhamiMcMeekingSinterSpecies() finished"<<std::endl;
#endif
}

ParhamiMcMeekingSinterSpecies() [2/2]

ParhamiMcMeekingSinterSpecies::ParhamiMcMeekingSinterSpecies

(

const ParhamiMcMeekingSinterSpecies &

s

)

The default constructor.

Parameters

[in]

s

the species that is copied

{
    alpha_ = s.alpha_;
    beta_ = s.beta_;
    atomicVolume_ = s.atomicVolume_; /*Omega*/
    surfaceEnergy_ = s.surfaceEnergy_; /*gamma_s*/
    thicknessDiffusion_ = s.thicknessDiffusion_; /*deltaB*D0B*/
    activationEnergy_ = s.activationEnergy_; /*QB*/
    temperature_ = s.temperature_; /*T*/
    pseudoSlidingFrictionCoefficient_ = s.pseudoSlidingFrictionCoefficient_; /*etaPart*/
    viscosityCoefficient_ = s.viscosityCoefficient_;
    adhesionCoefficient_ = s.adhesionCoefficient_;
    slidingFrictionCoefficient_ = s.slidingFrictionCoefficient_;
#ifdef DEBUG_CONSTRUCTOR
    std::cout<<"ParhamiMcMeekingSinterSpecies::ParhamiMcMeekingSinterSpecies(const ParhamiMcMeekingSinterSpecies &p) finished"<<std::endl;
#endif
}

References activationEnergy_, adhesionCoefficient_, alpha_, atomicVolume_, beta_, pseudoSlidingFrictionCoefficient_, s, slidingFrictionCoefficient_, surfaceEnergy_, temperature_, thicknessDiffusion_, and viscosityCoefficient_.

~ParhamiMcMeekingSinterSpecies()

ParhamiMcMeekingSinterSpecies::~ParhamiMcMeekingSinterSpecies

(

)

The default constructor.

{
#ifdef DEBUG_DESTRUCTOR
    std::cout<<"ParhamiMcMeekingSinterSpecies::~ParhamiMcMeekingSinterSpecies() finished"<<std::endl;
#endif
}

Member Function Documentation

getAdhesionCoefficient()

Mdouble ParhamiMcMeekingSinterSpecies::getAdhesionCoefficient ( ) const

inline

    { return adhesionCoefficient_; }

References adhesionCoefficient_.

Referenced by ParhamiMcMeekingSinterInteraction::computeAdhesionForce().

getBaseName()

std::string ParhamiMcMeekingSinterSpecies::getBaseName

(

)

const

Used in Species::getName to obtain a unique name for each Species.

Returns

a string containing the name of the species (minus the word "Species")

{
    return "ParhamiMcMeekingSinter";
}

getSlidingFrictionCoefficient()

Mdouble ParhamiMcMeekingSinterSpecies::getSlidingFrictionCoefficient ( ) const

inline

    { return slidingFrictionCoefficient_; }

References slidingFrictionCoefficient_.

Referenced by ParhamiMcMeekingSinterInteraction::computeAdhesionForce().

getViscosityCoefficient()

Mdouble ParhamiMcMeekingSinterSpecies::getViscosityCoefficient ( ) const

inline

    { return viscosityCoefficient_; }

References viscosityCoefficient_.

Referenced by ParhamiMcMeekingSinterInteraction::computeAdhesionForce().

mix()

void ParhamiMcMeekingSinterSpecies::mix	(	ParhamiMcMeekingSinterSpecies *	S,
		ParhamiMcMeekingSinterSpecies *	T
	)

creates default values for mixed species

For all parameters we assume that the harmonic mean of the parameters of the original two species is a sensible default.

Parameters

[in]

S,T

the two species whose properties are mixed to create the new species

{
//    adhesionForceMax_ = BaseSpecies::average(S->getAdhesionForceMax(), T->getAdhesionForceMax());
//    adhesionStiffness_ = BaseSpecies::average(S->getAdhesionStiffness(), T->getAdhesionStiffness());
}

read()

void ParhamiMcMeekingSinterSpecies::read

(

std::istream &

is

)

Reads the species properties from an input stream.

Parameters

[in]

is

input stream (typically the restart file)

{
//    std::string dummy;
//    is >> dummy >> adhesionForceMax_;
//    is >> dummy >> adhesionStiffness_;
}

set()

void ParhamiMcMeekingSinterSpecies::set ( Mdouble  alpha, Mdouble  beta, Mdouble  atomicVolume, Mdouble  surfaceEnergy, Mdouble  thicknessDiffusion, Mdouble  activationEnergy, Mdouble  temperature, Mdouble  pseudoSlidingFrictionCoefficient  )

inline

    {
        alpha_ = alpha;
        beta_ = beta;
        atomicVolume_ = atomicVolume;
        surfaceEnergy_ = surfaceEnergy;
        thicknessDiffusion_ = thicknessDiffusion;
        activationEnergy_ = activationEnergy;
        temperature_ = temperature;
        pseudoSlidingFrictionCoefficient_ = pseudoSlidingFrictionCoefficient;
        
        Mdouble boltzmannConstant /*k_B*/ = 1.38064852e-23;
        Mdouble gasConstant /*R_g*/ = 8.314459848;
        Mdouble thicknessDiffusionVacancy /*DB*/ =
                thicknessDiffusion_ * exp(-activationEnergy_ / gasConstant / temperature_);
        logger(INFO, "%|%", thicknessDiffusionVacancy, thicknessDiffusion_);
        Mdouble diffusionParameter /*DeltaB*/ =
                atomicVolume_ / boltzmannConstant / temperature_ * thicknessDiffusionVacancy;
        viscosityCoefficient_ = constants::pi / (2.0 * beta * diffusionParameter);
        adhesionCoefficient_ = alpha_ / beta_ * constants::pi * surfaceEnergy_;
        slidingFrictionCoefficient_ =
                pseudoSlidingFrictionCoefficient_ * constants::pi / (2.0 * beta * diffusionParameter);
    }

References activationEnergy_, adhesionCoefficient_, alpha, alpha_, atomicVolume_, beta, beta_, Eigen::bfloat16_impl::exp(), INFO, logger, constants::pi, pseudoSlidingFrictionCoefficient_, slidingFrictionCoefficient_, surfaceEnergy_, temperature_, thicknessDiffusion_, and viscosityCoefficient_.

write()

void ParhamiMcMeekingSinterSpecies::write

(

std::ostream &

os

)

const

Writes the species properties to an output stream.

Parameters

[out]

os

output stream (typically the restart file)

{
//    os << " adhesionForceMax " << adhesionForceMax_;
//    os << " adhesionStiffness " << adhesionStiffness_;
}

Member Data Documentation

activationEnergy_

Mdouble ParhamiMcMeekingSinterSpecies::activationEnergy_

private

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

adhesionCoefficient_

Mdouble ParhamiMcMeekingSinterSpecies::adhesionCoefficient_

private

adhesion force is adhesionCoefficient_*radius

Referenced by getAdhesionCoefficient(), ParhamiMcMeekingSinterSpecies(), and set().

alpha_

Mdouble ParhamiMcMeekingSinterSpecies::alpha_

private

viscous force is adhesionCoefficient_*temperature*contactRadius^4*normalRelativeVelocity

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

atomicVolume_

Mdouble ParhamiMcMeekingSinterSpecies::atomicVolume_

private

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

beta_

Mdouble ParhamiMcMeekingSinterSpecies::beta_

private

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

pseudoSlidingFrictionCoefficient_

Mdouble ParhamiMcMeekingSinterSpecies::pseudoSlidingFrictionCoefficient_

private

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

slidingFrictionCoefficient_

Mdouble ParhamiMcMeekingSinterSpecies::slidingFrictionCoefficient_

private

tangential force is slidingFrictionCoefficient_*contactRadius^2*radius*tangentialRelativeVelocity

Referenced by getSlidingFrictionCoefficient(), ParhamiMcMeekingSinterSpecies(), and set().

surfaceEnergy_

Mdouble ParhamiMcMeekingSinterSpecies::surfaceEnergy_

private

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

temperature_

Mdouble ParhamiMcMeekingSinterSpecies::temperature_

private

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

thicknessDiffusion_

Mdouble ParhamiMcMeekingSinterSpecies::thicknessDiffusion_

private

Referenced by ParhamiMcMeekingSinterSpecies(), and set().

viscosityCoefficient_

Mdouble ParhamiMcMeekingSinterSpecies::viscosityCoefficient_

private

viscous force is viscosityCoefficient_*contactRadius^4*normalRelativeVelocity

Referenced by getViscosityCoefficient(), ParhamiMcMeekingSinterSpecies(), and set().

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The documentation for this class was generated from the following files:

• ParhamiMcMeekingSinterSpecies.h
• ParhamiMcMeekingSinterSpecies.cc