About effect of layering on ballistic properties of metal shields against sharp-nosed rigid projectiles

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

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

On the basis of semi-empirical model (Rosenberg Z, Dekel E. Revisiting the perforation of ductile plates by sharp-nosed rigid projectiles. Int J Solids Struct 2010; 47(22-23): 3022-3033), we present a rigorous mathematical proof of the conjecture that layering does not improve ballistic properties of ductile shields against high-speed sharp nosed impactors. Within a relatively narrow range of normalized thicknesses of a monolithic shield and of layers (ratios of thicknesses to diameter of impactor), layering does not effect ballistic properties of the shield. In other cases ballistic performance of monolithic shield is better than ballistic performance of any layered shield having the same total thickness.

Original languageEnglish
Pages (from-to)358-361
Number of pages4
JournalEngineering Fracture Mechanics
Volume102
DOIs
StatePublished - 1 Apr 2013

Keywords

  • Ballistic limit velocity
  • Ductile fracture
  • Impact
  • Layered shield
  • Metals

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Mechanical Engineering

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