chrono::ChMaterialSurfaceSMC Class Reference
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>
Inheritance diagram for chrono::ChMaterialSurfaceSMC:
Collaboration diagram for chrono::ChMaterialSurfaceSMC:
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
