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

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

doi:10.1016/j.engfracmech.2013.02.004

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

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

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	358-361
Number of pages	4
Journal	Engineering Fracture Mechanics
Volume	102
DOIs	https://doi.org/10.1016/j.engfracmech.2013.02.004
State	Published - 1 Apr 2013

Keywords

Ballistic limit velocity
Ductile fracture
Impact
Layered shield
Metals

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.engfracmech.2013.02.004

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title = "About effect of layering on ballistic properties of metal shields against sharp-nosed rigid projectiles",

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.",

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AU - Ben-Dor, G.

AU - Dubinsky, A.

AU - Elperin, T.

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AB - 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.

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KW - Ductile fracture

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KW - Layered shield

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JO - Engineering Fracture Mechanics

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

Abstract

Keywords

ASJC Scopus subject areas

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