Author(s)

D.R. Scheffler

Abstract

This study examines the ability of the CTH hydrocode to predict the effect of rod nose-shape on the transition from rigid body to eroding rod penetration for tungsten alloy long rods penetrating or perforating thick aluminum targets. Two rod nose-shapes and two target alloys were considered. The rod nose-shapes were hemispherical and ogival, and the target alloys were 53.34 cm thick 5083 aluminum and 7039 aluminum. Results are compared to an experimental study that delineated the effect of nose-shape on the threshold velocity at which tungsten alloy penetrators transition from rigid body to eroding rod when penetrating thick aluminum targets. Predictions of the

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