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APS » Journals » Phys. Rev. Lett. » Volume 93 » Issue 15
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Phys. Rev. Lett. 93, 154301 (2004) [4 pages]

Anomalous Behavior of the Coefficient of Normal Restitution in Oblique Impact

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Hiroto Kuninaka1,* and Hisao Hayakawa2
1Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, Japan, 606-8501
2Department of Physics, Yoshida-south campus, Kyoto University, Sakyo-ku, Kyoto, Japan, 606-8501

Received 3 October 2003; published 5 October 2004

See accompanying Physics Focus

The coefficient of normal restitution in an oblique impact is theoretically studied. Using a two-dimensional lattice model for an elastic disk and an elastic wall, we demonstrate that the coefficient of normal restitution can exceed unity and has a peak against the incident angle in our simulation. We also explain this behavior based upon a phenomenological theory.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.93.154301
DOI:
10.1103/PhysRevLett.93.154301
PACS:
45.50.Tn, 45.70.–n, 62.20.–x, 81.40.Pq

*Present address: Department of Chemistry, Kyoto University, Sakyo-ku, Kyoto, Japan, 606-8502.

Email address: kuninaka@kuchem.kyoto-u.ac.jp

 
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