Contact model that evaluates forces and moments between two particles using parallel bond models. More...

#include <model_parallel_bond.hpp>

Inheritance diagram for netdem::ParallelBond:

Public Member Functions
	ParallelBond ()
	Default constructor for ParallelBond.

	ParallelBond (double kn, double kt, double sig_n, double sig_t, double beta)
	Constructor for ParallelBond.

nlohmann::json	PackJson () override
	Packs the contact model properties into a JSON object.

void	InitFromJson (nlohmann::json const &js) override
	Initializes the contact model from a JSON object.

void	SetProperty (nlohmann::json const &js) override
	Sets the contact model properties.

ContactModel *	Clone () const override
	Creates a copy of this contact model.

void	SetRadius (double r)
	Sets the radius for the bond geometries used by this contact model.

void	EvaluateForces (ContactForces const cnt_forces, BondGeometries &cnt_geoms, ContactPP const cnt, double dt) const override
	Evaluates the forces and moments between two particles using parallel bond models.

void	EvaluateForces (ContactForces const cnt_forces, BondGeometries &cnt_geoms, ContactPW const cnt, double dt) const override
	Evaluates the forces and moments between a particle and a wall using parallel bond models.

void	Print () const override
	Prints the contact model properties.

Public Member Functions inherited from netdem::ContactModel
virtual void	SetProperty (std::string const &name, double value)
	Set a property of this contact model by name and value.

virtual void	EvaluateForces (ContactForces const cnt_forces, CollisionGeometries &cnt_geoms, ContactPP const cnt, double dt) const
	Calculate the contact forces and moments due to this model.

virtual void	EvaluateForces (ContactForces const cnt_forces, CollisionGeometries &cnt_geoms, ContactPW const cnt, double dt) const
	Calculate the contact forces and moments due to this model.

virtual	~ContactModel ()

Public Attributes
double	kn {2e6}
	< Stiffness parameters used to calculate contact forces.

double	kt {1e6}
	Maximum stress parameters used to calculate the maximum allowable force.

double	max_sig_n {1.0e6}

double	max_sig_t {1.0e6}

double	beta {0.0}

Public Attributes inherited from netdem::ContactModel
int	id {0}

std::string	label {"default"}

int	model_type {0}

std::string	model_name {"contact_model"}

Additional Inherited Members
Public Types inherited from netdem::ContactModel
enum	Type { none , linear_spring , hertz_mindlin , volume_based , parallel_bond }

Detailed Description

Contact model that evaluates forces and moments between two particles using parallel bond models.

Constructor & Destructor Documentation

◆ ParallelBond() [1/2]

netdem::ParallelBond::ParallelBond ( )

Default constructor for ParallelBond.

◆ ParallelBond() [2/2]

netdem::ParallelBond::ParallelBond	(	double	kn,
		double	kt,
		double	sig_n,
		double	sig_t,
		double	beta )

Constructor for ParallelBond.

Parameters

kn	Normal stiffness parameter used to calculate contact forces.
kt	Tangential stiffness parameter used to calculate contact forces.
sig_n	Maximum normal stress used to calculate the maximum allowable force.
sig_t	Maximum tangential stress used to calculate the maximum allowable force.

Member Function Documentation

◆ Clone()

ContactModel * netdem::ParallelBond::Clone ( ) const

overridevirtual

Creates a copy of this contact model.

Returns: A new instance of the contact model.

Reimplemented from netdem::ContactModel.

◆ EvaluateForces() [1/2]

void netdem::ParallelBond::EvaluateForces	(	ContactForces *const	cnt_forces,
		BondGeometries &	cnt_geoms,
		ContactPP *const	cnt,
		double	dt ) const

overridevirtual

Evaluates the forces and moments between two particles using parallel bond models.

Parameters

cnt_forces	The contact forces data structure to store the results.
cnt_geoms	The bond geometries data structure containing the contact information.
cnt	The contact point between the two particles.
dt	The simulation timestep.

Reimplemented from netdem::ContactModel.

◆ EvaluateForces() [2/2]

void netdem::ParallelBond::EvaluateForces	(	ContactForces *const	cnt_forces,
		BondGeometries &	cnt_geoms,
		ContactPW *const	cnt,
		double	dt ) const

overridevirtual

Evaluates the forces and moments between a particle and a wall using parallel bond models.

Parameters

cnt_forces	The contact forces data structure to store the results.
cnt_geoms	The bond geometries data structure containing the contact information.
cnt	The contact point between the particle and the wall.
dt	The simulation timestep.

Reimplemented from netdem::ContactModel.

◆ InitFromJson()

void netdem::ParallelBond::InitFromJson ( nlohmann::json const & js )

overridevirtual

Initializes the contact model from a JSON object.

Parameters

js	A JSON object containing the contact model properties.

Reimplemented from netdem::ContactModel.

◆ PackJson()

nlohmann::json netdem::ParallelBond::PackJson ( )

overridevirtual

Packs the contact model properties into a JSON object.

Returns: A JSON object containing the contact model properties.

Reimplemented from netdem::ContactModel.

◆ Print()

void netdem::ParallelBond::Print ( ) const

overridevirtual

Prints the contact model properties.

Reimplemented from netdem::ContactModel.

◆ SetProperty()

void netdem::ParallelBond::SetProperty ( nlohmann::json const & js )

overridevirtual

Sets the contact model properties.

Parameters

js	A JSON object containing the contact model properties.

Reimplemented from netdem::ContactModel.

◆ SetRadius()

void netdem::ParallelBond::SetRadius ( double r )

Sets the radius for the bond geometries used by this contact model.

Parameters

r	The radius to set.

Member Data Documentation

◆ beta

double netdem::ParallelBond::beta {0.0}

◆ kn

double netdem::ParallelBond::kn {2e6}

< Stiffness parameters used to calculate contact forces.

◆ kt

double netdem::ParallelBond::kt {1e6}

Maximum stress parameters used to calculate the maximum allowable force.

◆ max_sig_n

double netdem::ParallelBond::max_sig_n {1.0e6}

◆ max_sig_t

double netdem::ParallelBond::max_sig_t {1.0e6}

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

/Users/lzhshou/Documents/Research/myProjects/apaam/repo/netdem/src/dem/model_parallel_bond.hpp
/Users/lzhshou/Documents/Research/myProjects/apaam/repo/netdem/src/dem/model_parallel_bond.cpp

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ParallelBond() [1/2]

◆ ParallelBond() [2/2]

Member Function Documentation

◆ Clone()

◆ EvaluateForces() [1/2]

◆ EvaluateForces() [2/2]

◆ InitFromJson()

◆ PackJson()

◆ Print()

◆ SetProperty()

◆ SetRadius()

Member Data Documentation

◆ beta

◆ kn

◆ kt

◆ max_sig_n

◆ max_sig_t