Effect of air gap and order of plates on ballistic resistance of two layered armor

G. Ben-Dor, A. Dubinsky, T. Elperin

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

The high velocity normal impact of a three-dimensional rigid conical impactor penetrating into a two-layered ductile armor with an air gap is studied using a simplified model for an impactor-armor interaction. The goal of the study is to investigate analytically the dependence of the ballistic resistance of the armor on the order of the plates in the armor and on the width of an air gap between the plates. It is found that the ratio between the values of a single parameter depending on the material properties of the plates determines this dependence in both cases. This parameter characterizes the properties of the material of the plate; for the most widely used models of impactor-armor interaction, it is the ratio of the distortion pressure to the density of the plate.

Original languageEnglish
Pages (from-to)233-241
Number of pages9
JournalTheoretical and Applied Fracture Mechanics
Volume31
Issue number3
DOIs
StatePublished - 1 Jan 1999

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