Impact Force of a Rigid-Plastic Missile

[+] Author and Article Information
M. P. White

Department of Civil Engineering, University of Massachusetts, Amherst, Mass. 01003

J. Appl. Mech 51(1), 102-106 (Mar 01, 1984) (5 pages) doi:10.1115/1.3167551 History: Received July 01, 1982; Revised April 01, 1983; Online July 21, 2009


A cylindrical missile, assumed to be of a rigid-plastic material strikes a nonyielding target normally and end-on. Above a certain (critical) velocity the nose of the missile disintegrates or spatters, and below that velocity the nose flattens to a mushroom form. The contact force decreases with decreasing velocity during impact but experiences a jump as the critical velocity is passed during slowdown. This paper gives a method of calculating the critical velocity and the contact force as function of time, as well as the time variations of the other parameters of the impact process.

Copyright © 1984 by ASME
Topics: Force , Missiles
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