6533b82cfe1ef96bd128e95e

RESEARCH PRODUCT

Independent friction-restitution approach to analyze anomalies in normal kinematic restitution in oblique impact

Antonio Doménech-carbó

subject

PhysicsMechanical EngineeringOblique case02 engineering and technologyKinematicsAnomalous behaviorMechanicsCondensed Matter Physics01 natural sciences010305 fluids & plasmasRestitution020303 mechanical engineering & transports0203 mechanical engineeringMechanics of Materials0103 physical sciencesCoefficient of restitutionGeneral Materials ScienceConstant (mathematics)NormalCivil and Structural Engineering

description

Abstract Oblique impact between rigid bodies is usually described in terms of the coefficients of normal and tangential restitution. When the contact between bodies occurs under elasto-plastic conditions, the normal coefficient of restitution can be ordinarily taken as essentially constant. Several anomalous results reported by Louge and Adams (Anomalous behavior of normal kinematic restitution in the oblique impacts of a hard sphere on an elasto-plastic plate. Phys. Rev. E 65 (2002) 021303), however denoted a significant variation of this coefficient with the incidence angle under certain conditions. This anomalous behavior is interpreted here within the independent friction and restitution closure assuming that these mechanisms operate in both the tangential and normal direction. Theoretical predictions are in satisfactory agreement with reported ‘anomalous’ data.

https://doi.org/10.1016/j.mechrescom.2021.103699