The Simulation of the Inelastic Impact
Hiroto Kuninaka, Hisao Hayakawa
TL;DR
This paper investigates the behavior of the coefficient of normal restitution in oblique impacts using lattice models, revealing that COR can exceed one and peak at certain incident angles, explained through elasticity theory.
Contribution
It introduces a lattice model approach to study COR in oblique impacts and explains the phenomena with elasticity theory, showing COR can surpass one.
Findings
COR can exceed one in oblique impacts
COR peaks at specific incident angles
Phenomenological elasticity theory explains these phenomena
Abstract
The coefficient of normal restitution (COR) in an oblique impact is theoretically studied. Using a two-dimensional lattice models for an elastic disk and an elastic wall, we investigate the dependency of COR on an incident angle and demonstrate that COR can exceed one and have a peak against an incident angle in our simulation. Finally, we explain these phenomena based upon the phenomenological theory of elasticity.
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