An Analytical Study of Projectile Penetration into Rock
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS
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This report presents the results of a parameter study of projectile penetration into rock using a computer code based on U.S. Army Engineer Waterways Experiment Station modifications and extensions of the Ross-Hanagud penetration theory, which in turn is based on the dynamic cavity expansion theory of Goodier. The theory treats the projectile as a rigid body and the target as an elastic-plastic locking material. The objectives were to gain 1 a qualitative and quantitative understanding of the factors of importance in rock penetration, 2 a feel for the depths of penetration which may be attainable, and 3 an appreciation for the complexities and uncertainties involved. Such an understanding is essential for the design of penetrating weapons for use against targets in rock or in situations in which, because of incomplete target intelligence, the possibility of encountering rock cannot be eliminated.
- Geology, Geochemistry and Mineralogy
- Civil Engineering