Laboratory-Scale Penetration Experiments Into Geological Targets to Impact Velocities of 2.1 km/s

[+] Author and Article Information
M. J. Forrestal

Sandia National Laboratories, Albuquerque, N. Mex. 87185

L. M. Lee, B. D. Jenrette

Ktech Corporation, Albuquerque, N. Mex. 87110

J. Appl. Mech 53(2), 317-320 (Jun 01, 1986) (4 pages) doi:10.1115/1.3171758 History: Received February 12, 1985; Online July 21, 2009


We obtained forces on 3.0 and 6.0 CRH, ogival-nosed projectiles penetrating a simulated geological target. A gas gun and a powder gun accelerated foundry core targets (a simulated soft sandstone) to steady velocities between 0.6–2.1 km/s, and the targets subsequently impacted 20.6 mm diameter penetrators. Rigid-body motions of the penetrators were obtained with laser interferometry and piezoelectric accelerometers. At a penetration velocity of about 1.5 km/s, the 6.0 CRH nose shape exhibited severe, permanent deformation; whereas, the 3.0 CRH nose shape remained undeformed for penetration velocities up to 2.1 km/s.

Copyright © 1986 by ASME
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