chrono::ChContactMaterialSMC Class Reference
Description
Material data for a collision surface for use with smooth (penalty) contact method.
#include <ChContactMaterialSMC.h>
Inheritance diagram for chrono::ChContactMaterialSMC:
Collaboration diagram for chrono::ChContactMaterialSMC:
Public Member Functions | |
| ChContactMaterialSMC (const ChContactMaterialSMC &other) | |
| virtual ChContactMaterialSMC * | Clone () const override |
| "Virtual" copy constructor (covariant return type). | |
| virtual ChContactMethod | GetContactMethod () const override |
| void | SetYoungModulus (float val) |
| Young's modulus. | |
| float | GetYoungModulus () const |
| void | SetPoissonRatio (float val) |
| float | GetPoissonRatio () const |
| void | SetAdhesion (float val) |
| Constant cohesion force. | |
| float | GetAdhesion () const |
| void | SetAdhesionMultDMT (float val) |
| Adhesion multiplier in the Derjaguin-Muller-Toporov model. More... | |
| 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 | ArchiveOut (ChArchiveOut &archive_out) override |
| Method to allow serialization of transient data to archives. | |
| virtual void | ArchiveIn (ChArchiveIn &archive_in) override |
| Method to allow deserialization of transient data from archives. | |
 Public Member Functions inherited from chrono::ChContactMaterial | |
| void | SetStaticFriction (float val) |
| Set the static friction coefficient. More... | |
| float | GetStaticFriction () const |
| Get the static friction coefficient. | |
| void | SetSlidingFriction (float val) |
| Set the sliding (kinetic) friction coefficient. | |
| float | GetSlidingFriction () const |
| Get the sliding friction coefficient. | |
| void | SetFriction (float val) |
| Set both static friction and sliding friction at once, with same value. | |
| void | SetRollingFriction (float val) |
| Set the rolling friction coefficient (default: 0). More... | |
| float | GetRollingFriction () const |
| Get the rolling friction coefficient. | |
| void | SetSpinningFriction (float val) |
| Set the spinning friction coefficient (default: 0). More... | |
| float | GetSpinningFriction () const |
| Get the roliung friction coefficient. | |
| void | SetRestitution (float val) |
| Set the ormal coefficient of restitution (default: 0). More... | |
| float | GetRestitution () const |
| Get the coefficient of restitution. | |
Public Attributes | |
| float | young_modulus |
| Young's modulus (elastic modulus) | |
| float | poisson_ratio |
| Poisson ratio. | |
| 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 | |
| Public Attributes inherited from chrono::ChContactMaterial | |
| float | static_friction |
| static coefficient of friction | |
| float | sliding_friction |
| sliding coefficient of friction | |
| float | rolling_friction |
| rolling coefficient of friction | |
| float | spinning_friction |
| spinning coefficient of friction | |
| float | restitution |
| coefficient of restitution | |
Additional Inherited Members | |
| Static Public Member Functions inherited from chrono::ChContactMaterial | |
| static std::shared_ptr< ChContactMaterial > | DefaultMaterial (ChContactMethod contact_method) |
| Construct and return a contact material of the specified type with default properties. | |
| Protected Member Functions inherited from chrono::ChContactMaterial | |
| ChContactMaterial (const ChContactMaterial &other) | |
Member Function Documentation
◆ SetAdhesionMultDMT()
|
inline |
Adhesion multiplier in the Derjaguin-Muller-Toporov model.
In this model, adhesion = adhesionMultDMT * sqrt(R_eff) given the surface energy, w, adhesionMultDMT = 2 * CH_PI * w * sqrt(R_eff) given the equilibrium penetration distance, y_eq, adhesionMultDMT = 4.0 / 3.0 * E_eff * powf(y_eq, 1.5)
◆ 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 measure of cleanliness S. For lunar regolith, adhesionSPerko = 3.6e-2 * S^2
The documentation for this class was generated from the following files:
- /builds/uwsbel/chrono/src/chrono/physics/ChContactMaterialSMC.h
- /builds/uwsbel/chrono/src/chrono/physics/ChContactMaterialSMC.cpp
