Author(s)

Z. Rosenberg & E. Dekel

Abstract

The paper reviews our recent work concerning the influence of target and penetrator strength on the penetration process of long-rod penetrators. This work has been done with the Eulerian processor of the 2-D program PICSES 2DELK. Using these simulations, we were able to critically examine various features of penetration model of Alekseevskii and Tate, which has been considered the most successful analytical model for the past 25 years. Also, the issue of geometric scaling is discussed (for the axisymmetric case of penetration into semi-infinite targets). We present some data to enhance our assumption which relates the nonscaling phenomenon with the semi-brittle nature of the failure mechanisms of the rod material. Finally, a set of simulations is presented in which the role of the strain to failure is demonstrated. This strain to failure should be link

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