Coefficient of Restitution for Collinear Collisions of Elastic-Perfectly Plastic Spheres

[+] Author and Article Information
C. Thornton

Civil Engineering Department, Aston University, Aston Triangle, Birmingham B4 7ET, UK

J. Appl. Mech 64(2), 383-386 (Jun 01, 1997) (4 pages) doi:10.1115/1.2787319 History: Received November 28, 1995; Revised August 02, 1996; Online October 25, 2007


Based on a simplified theoretical model for the normal contact interaction of two elastic-perfectly plastic spheres, an analytical solution is provided for the coefficient of restitution. The solution is expressed in terms of the ratio of impact velocity to yield velocity rather than in terms of material properties such as the yield stress which is difficult to reliably ascertain for many materials.

Copyright © 1997 by The American Society of Mechanical Engineers
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