Interactions data

This page displays only attributes added at a certain inheritance level. For seeing all attributes of each data type see this variant

Classes

base_interaction()	This is generic pair interaction and this is a long comment continuing here
base_thermal()	This material describes thermal behaviour
intr3D()	3 DOFs interaction combining normal and shear forces
linear_3D()	linear elastic interaction
linear_frictional_3D()	linear frictional interaction
liquid_bridge()	interaction to store base information needed for liquid bridges
liquid_bridge_dynamic()	liquid bridge interaction, where the volume can change
normal()	interaction in the normal direction
normal_basic_luding()	This material describes linear-elastic behaviour with spring constants
normal_hertz()	Hertzian interaction in the normal direction
normal_linear()	linear-elasticity
normal_linear_viscoelastic()	linear-elasticity with viscosity (linear spring dashpot)
shear()	interaction in the tangential (or shear) direction
shear_linear()	linear-elasticity
shear_linear_viscoelastic()	linear-elasticity with viscosity
thermal_Blaze()	This material describes thermal behaviour dependent on friction and cohesion

Class Inheritance Diagram

Detailed content

class interaction.base_interaction

Bases: object

This is generic pair interaction and this is a long comment continuing here

model: str = None

[mandatory] which model applies to this interaction

id1: int = None

[mandatory] id of body 1

id2: int = None

[mandatory] id of body 2

virtual: bool = False

[optional] weither the interaction is real (else it is in a virtual state - typically without contact)

creation_time: float = 0

[optional] time when the interaction was created (example of optional data)

class interaction.normal

Bases: base_interaction

interaction in the normal direction

normal: Vector3 = Vector3(0, 0, 0)

[mandatory] unit normal [\(-\)]

normal_force: float = 0

[mandatory] normal force magnitude (positive in traction) [\(F\)]

class interaction.shear

Bases: base_interaction

interaction in the tangential (or shear) direction

shear_force: Vector3 = Vector3(0, 0, 0)

shear force [\(F\)]

class interaction.intr3D

Bases: normal, shear

3 DOFs interaction combining normal and shear forces

class interaction.shear_linear

Bases: shear

linear-elasticity

ks: float = None

[mandatory] shear stiffness [\(F/L\)]

class interaction.shear_linear_viscoelastic

Bases: shear_linear

linear-elasticity with viscosity

shear_viscosity: float = None

[mandatory] shear damping ratio, \(c_{s}\), [\(FT/L\)]

class interaction.normal_linear

Bases: normal

linear-elasticity

kn: float = None

[mandatory] normal stiffness [\(F/L\)]

class interaction.normal_linear_viscoelastic

Bases: normal_linear

linear-elasticity with viscosity (linear spring dashpot)

normal_viscosity: float = None

[mandatory] normal damping ratio, \(c_{n}\), [\(FT/L\)]

class interaction.normal_hertz

Bases: normal

Hertzian interaction in the normal direction

hertz_young: float = None

[mandatory] equivalent Young modulus [\(F/L²\)]

hertz_poisson: float = None

[mandatory] equivalent Poisson coefficient [\(-\)]

class interaction.linear_3D

Bases: intr3D, normal_linear, shear_linear

linear elastic interaction

class interaction.linear_frictional_3D

Bases: linear_3D

linear frictional interaction

friction_coefficient: float = None

[mandatory] friction coefficient, \(\mu\), [\(-\)]

class interaction.base_thermal

Bases: base_interaction

This material describes thermal behaviour

class interaction.thermal_Blaze

Bases: base_thermal

This material describes thermal behaviour dependent on friction and cohesion

class interaction.liquid_bridge

Bases: base_interaction

interaction to store base information needed for liquid bridges

is_formed: bool = None

[mandatory] whether a liquid bridge was formed previously

class interaction.liquid_bridge_dynamic

Bases: liquid_bridge

liquid bridge interaction, where the volume can change

liquid_bridge_volume: float = None

[mandatory] the liquid volume stored in the bridge, \(V\) [\(L^3\)]

class interaction.normal_basic_luding

Bases: normal_linear

This material describes linear-elastic behaviour with spring constants

k1: float = None

[mandatory] normal stiffness in plastic branch, \(K_{1}\), [\(FL^{-1}\)]

k2: float = None

[mandatory] normal stiffness in unloading and reloading elastic branch, \(K_{n}^{U}\), [\(FL^{-1}\)]

kc: float = None

[mandatory] normal stiffness in tensile adhesive branch, \(K_{adh}^{U}\), [\(FL^{-1}\)]