Shape effects in hypervelocity impact on semi-infinite metallic targets

摘要

In this study, an existing penetration equation, which was originally designed to give the penetration depth of spherical projectiles at hypervelocity into semi-infinite metallic targets, was modified to give the penetration depths of rotationally symmetric ellipsoid shaped projectiles into semi-infinite targets. To that purpose, a shape factor was defined in order to be able to describe the ellipsoid shape with a single number. The shape factor corresponds to the 1/d ratio of rod- or disk-like projectiles.