6533b7d4fe1ef96bd12627d8
RESEARCH PRODUCT
Independent friction-restitution modeling of two-disk collisions
María Teresa Doménech-carbóAntonio Doménech-carbóElena Montagnasubject
Fluid Flow and Transfer ProcessesPhysicsSurface (mathematics)Mechanical EngineeringRolling resistanceComputational MechanicsRotational symmetryExperimental dataOblique caseMechanicsCondensed Matter PhysicsRestitutionClosure (computer programming)Mechanics of MaterialsPINTURACoulombdescription
[EN] The oblique collisions between two axisymmetric disks moving on a flat horizontal surface are described in terms of impact modeling based on the assumption that normal and tangential restitution mechanisms operate independently of friction. Describing these mechanisms in terms of the usual Coulomb formulation, the model allows for an interpretation of some ¿anomalous¿ experimental data reported in the literature. These experimental data, corresponding to the variation of the coefficients of friction and tangential restitution with the impact angle, remained unexplained in classic formulations, are understood within the framework of the independent friction-restitution closure. Experimental data for metallic coins are in agreement with that formulation, including rolling friction effects.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-04-01 |