MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration Struct Reference

Public Member Functions
	ContactConfiguration (const DEMParticleAccessor< dim, number > &self, const DEMParticleAccessor< dim, number > &other, const number youngs_modulus, const number poisson_ratio)
	ContactConfiguration (const DEMParticleAccessor< dim, number > &particle, const dealii::Function< dim > *wall, const number youngs_modulus, const number poisson_ratio)

Public Attributes
number	effective_mass
	Effective mass of the two contacting particles, i.e., m1*m2/(m1+m2).
number	effective_radius
	Effective radius of the two contacting particles, i.e., R1*R2/(R1+R2).
number	effective_youngs_modulus
	Effective youngs modulus of the two contacting particles, i.e., E/(2*(1-nu^2)).
number	effective_shear_modulus
	Effective shear modulus of the two contacting particles, i.e., G/(4*(2-nu)*(1+nu)).
dealii::Tensor< 1, dim, number >	normal_vector
	Normal vector pointing from self to other.
number	normal_overlap
	Normal overlap between the two particles (positive if in contact).
dealii::Tensor< 1, axial_dim< dim >, number >	relative_angular_velocity
	Relative angular velocity between the two particles or the particle and the wall.
struct {
dealii::Tensor< 1, dim, number >   value
	Full relative velocity vector at the contact point. More...
dealii::Tensor< 1, dim, number >   normal_component
	Normal component of the relative velocity. More...
dealii::Tensor< 1, dim, number >   tangential_component
	Tangential component of the relative velocity. More...
}	relative_velocity

Detailed Description

template<int dim, typename number, typename ObstacleType>
struct MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration

Struct describing the contact configuration between two particles, i.e., it computes and caches all relevant contact parameters such as contact velocity, overlaps etc. required in the computation of contact forces.

Constructor & Destructor Documentation

ContactConfiguration() [1/2]

template<int dim, typename number , typename ObstacleType >

MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::ContactConfiguration	(	const DEMParticleAccessor< dim, number > &	self,
		const DEMParticleAccessor< dim, number > &	other,
		const number	youngs_modulus,
		const number	poisson_ratio
	)

Constructor which computes all relevant input for the contact model between two particles. Note that the computed normal vector points from self to other.

Parameters

self	The first particle in the contact.
other	The second particle in the contact.
youngs_modulus	The Young's modulus of the particle material.
poisson_ratio	The Poisson's ratio of the particle material.

ContactConfiguration() [2/2]

template<int dim, typename number , typename ObstacleType >

MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::ContactConfiguration	(	const DEMParticleAccessor< dim, number > &	particle,
		const dealii::Function< dim > *	wall,
		const number	youngs_modulus,
		const number	poisson_ratio
	)

Constructor which computes all relevant input for the particle–wall contact model. The wall is assumed to have infinite mass and stiffness.

Parameters

particle	The particle involved in the contact.
wall	Pointer to the signed distance function representing the wall.
youngs_modulus	The Young's modulus of the particle material.
poisson_ratio	The Poisson's ratio of the particle material.

Member Data Documentation

effective_mass

template<int dim, typename number , typename ObstacleType >

number MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::effective_mass

Effective mass of the two contacting particles, i.e., m1*m2/(m1+m2).

effective_radius

template<int dim, typename number , typename ObstacleType >

number MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::effective_radius

Effective radius of the two contacting particles, i.e., R1*R2/(R1+R2).

effective_shear_modulus

template<int dim, typename number , typename ObstacleType >

number MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::effective_shear_modulus

Effective shear modulus of the two contacting particles, i.e., G/(4*(2-nu)*(1+nu)).

effective_youngs_modulus

template<int dim, typename number , typename ObstacleType >

number MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::effective_youngs_modulus

Effective youngs modulus of the two contacting particles, i.e., E/(2*(1-nu^2)).

normal_component

template<int dim, typename number , typename ObstacleType >

dealii::Tensor<1, dim, number> MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::normal_component

Normal component of the relative velocity.

normal_overlap

template<int dim, typename number , typename ObstacleType >

number MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::normal_overlap

Normal overlap between the two particles (positive if in contact).

normal_vector

template<int dim, typename number , typename ObstacleType >

dealii::Tensor<1, dim, number> MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::normal_vector

Normal vector pointing from self to other.

relative_angular_velocity

template<int dim, typename number , typename ObstacleType >

dealii::Tensor<1, axial_dim<dim>, number> MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::relative_angular_velocity

Relative angular velocity between the two particles or the particle and the wall.

[struct]

struct { ... } MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::relative_velocity

Struct for describing the relative velocity between two particles at the contact point.

tangential_component

template<int dim, typename number , typename ObstacleType >

dealii::Tensor<1, dim, number> MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::tangential_component

Tangential component of the relative velocity.

value

template<int dim, typename number , typename ObstacleType >

dealii::Tensor<1, dim, number> MeltPoolDG::SphericalParticleContactForce< dim, number, ObstacleType >::ContactConfiguration::value

Full relative velocity vector at the contact point.

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

• include/meltpooldg/particles/contact_forces.hpp
• source/particles/contact_forces.cpp