Author(s)

J.A. Zukas

Abstract

In determining ballistic limits and residual projectile characteristics for very thick targets (situations where the ratio of target thickness T to projectile diameter D exceeds 10), resort must frequently be made to constructing the target from a number of layers whose thickness is less than that of the monoblock target. This holds true for determining penetration depths in semi- infinite plates as well. This paper presents results of numerical simulations comparing projectile residual characteristics, primarily residual mass, for monoblock and equivalent thickness layered targets for a number of situations involving T/D <1 to T/D > 10. It is found that for thick plates, results obtained from layered target perforation compare favorably with those from monoblock targets provided that the layering is not e

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