Description
Material data for a surface for use with smooth (penalty) contact method.
This data is used to define surface properties owned by ChBody rigid bodies and similar objects; it carries information that is used to make contacts.
#include <ChMaterialSurfaceSMC.h>
Public Member Functions | |
ChMaterialSurfaceSMC (const ChMaterialSurfaceSMC &other) | |
virtual ChMaterialSurfaceSMC * | Clone () const override |
"Virtual" copy constructor (covariant return type). | |
virtual ContactMethod | GetContactMethod () const override |
void | SetYoungModulus (float val) |
Young's modulus. | |
float | GetYoungModulus () const |
void | SetPoissonRatio (float val) |
float | GetPoissonRatio () const |
void | SetSfriction (float val) |
Static sliding friction coefficient. More... | |
float | GetSfriction () const |
void | SetKfriction (float val) |
Kinetic sliding friction coefficient. | |
float | GetKfriction () const |
void | SetFriction (float val) |
Set both static friction and kinetic friction at once, with same value. | |
void | SetRollingFriction (float val) |
Rolling friction coefficient. Usually around 1E-3. Default = 0. | |
float | GetRollingFriction () const |
void | SetSpinningFriction (float val) |
Spinning friction coefficient. Usually around 1E-3. Default = 0. | |
float | GetSpinningFriction () const |
void | SetRestitution (float val) |
Normal coefficient of restitution. | |
float | GetRestitution () const |
void | SetAdhesion (float val) |
Constant cohesion force. | |
float | GetAdhesion () const |
void | SetAdhesionMultDMT (float val) |
Adhesion multiplier in the Derjaguin-Muller-Toporov model. | |
float | GetAdhesionMultDMT () const |
void | SetAdhesionSPerko (float val) |
Coefficient for Perko adhesion model. More... | |
float | GetAdhesionSPerko () const |
void | SetKn (float val) |
Stiffness and damping coefficients. | |
void | SetKt (float val) |
void | SetGn (float val) |
void | SetGt (float val) |
float | GetKn () const |
float | GetKt () const |
float | GetGn () const |
float | GetGt () const |
virtual void | StreamOUT (ChStreamOutAscii &mstream) |
Method to allow serializing transient data into in ASCII. | |
virtual void | ArchiveOUT (ChArchiveOut &marchive) override |
Method to allow serialization of transient data to archives. | |
virtual void | ArchiveIN (ChArchiveIn &marchive) override |
Method to allow deserialization of transient data from archives. | |
Public Attributes | |
float | young_modulus |
Young's modulus (elastic modulus) | |
float | poisson_ratio |
Poisson ratio. | |
float | static_friction |
Static coefficient of friction. | |
float | sliding_friction |
Kinetic coefficient of friction. | |
float | rolling_friction |
Rolling coefficient of friction. | |
float | spinning_friction |
Spinning coefficient of friction. | |
float | restitution |
Coefficient of restitution. | |
float | constant_adhesion |
Constant adhesion force, when constant adhesion model is used. | |
float | adhesionMultDMT |
Adhesion multiplier used in DMT model. | |
float | adhesionSPerko |
Adhesion multiplier used in Perko model. | |
float | kn |
user-specified normal stiffness coefficient | |
float | kt |
user-specified tangential stiffness coefficient | |
float | gn |
user-specified normal damping coefficient | |
float | gt |
user-specified tangential damping coefficient | |
Additional Inherited Members | |
Public Types inherited from chrono::ChMaterialSurface | |
enum | ContactMethod { NSC, SMC } |
Member Function Documentation
◆ SetAdhesionSPerko()
|
inline |
Coefficient for Perko adhesion model.
In this model (see Perko et al., 2001), adhesion = adhesionSPerko * R. The coefficient adhesionSPerko is function of the Hamaker constant A and a measurement of cleanliness S. For lunar regolith, adhesionSPerko = 3.6e-2 * S^2.
◆ SetSfriction()
|
inline |
Static sliding friction coefficient.
Usually in 0..1 range, rarely above. Default 0.6
The documentation for this class was generated from the following files:
- /builds/uwsbel/chrono/src/chrono/physics/ChMaterialSurfaceSMC.h
- /builds/uwsbel/chrono/src/chrono/physics/ChMaterialSurfaceSMC.cpp