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RESEARCH PAPERS

Penetration of 6061-T651 Aluminum Targets With Rigid Long Rods

[+] Author and Article Information
M. J. Forrestal, V. K. Luk

Sandia National Laboratories, Albuquerque, N.M. 87185

K. Okajima

University of Dayton Research Institute, Dayton, Ohio 45469

J. Appl. Mech 55(4), 755-760 (Dec 01, 1988) (6 pages) doi:10.1115/1.3173718 History: Received October 13, 1987; Revised May 15, 1988; Online July 21, 2009

Abstract

We developed engineering models for forces on rigid, long rods with spherical, ogival, and conical noses that penetrated rate independent, elastic-perfectly plastic targets. The spherical and cylindrical, cavity-expansion approximations simplified the target analyses, so we obtained closed-form penetration equations. To verify our models, we performed terminal-ballistic experiments with 7.1-mm dia., 0.024 kg, marging steel rods and 152-mm dia., 6061-T651 aluminum targets. The models predicted penetration depths that were in reasonable agreement with the data for impact velocities between 0.4-1.4 km/s.

Copyright © 1988 by ASME
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