A Modified Penetration Model for Copper-Tungsten Shaped Charge Jet with Non-Uniform Density Distribution | Zendy

Tamer Elshenawy | Zendy; Ahmed Elbeih | Zendy; Qing Li | Zendy

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A Modified Penetration Model for Copper-Tungsten Shaped Charge Jet with Non-Uniform Density Distribution

Author(s) -

Tamer Elshenawy,

Ahmed Elbeih,

Qing Li

Publication year - 2016

Publication title -

central european journal of energetic materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.512

H-Index - 25

eISSN - 2353-1843

pISSN - 1733-7178

DOI - 10.22211/cejem/65141

Subject(s) - shaped charge , tungsten , copper , penetration (warfare) , materials science , charge density , jet (fluid) , composite material , mechanics , metallurgy , chemistry , physics , mathematics , organic chemistry , operations research , quantum mechanics , explosive material

The penetration of a shaped charge jet with non-uniform density distribution was studied. The virtual origin model, which assumes a constant jet density, was modified to include the situation where the jet density deficit/reduction of an un-sintered copper-tungsten powder jet causes a non-uniform jet density distribution. A relation between the relative density ratio and the normalised jet velocity is proposed, based on which an analytical solution of the modified virtual origin model is obtained. The validity of the modified virtual origin model was demonstrated by its largely improved prediction in comparison with experimental and numerical results. It showed that the density reduction term reduces the penetration depth by 16.58% for an un-sintered copper-tungsten powder jet.

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