More on material similarities in long rod penetration mechanics

Abstract
The work presented here examines the possibility of achieving an overall non-dimensional expression for the penetration depth of long rod penetrators into semi-infinite metallic targets. The work is based on 2D numerical simulations, using the PISCES 2DELK code, varying all the relevant material parameters in a wide range. These include rod and target densities and strengths, penetrator aspect ratio and impact velocity. It is found that a single normalized expression for the penetration depth vs. impact velocity is very difficult, if not impossible, to achieve over the whole range of parameters. However, for limited ranges one can obtain such representations in a non-dimensional presentation.