The Mathematical Institute, University of Oxford, Eprints Archive

Elastic-Plastic Modelling of Shaped Charge Jet Penetration

Novokshanov, R. and Ockendon, J. R. (2006) Elastic-Plastic Modelling of Shaped Charge Jet Penetration. Proceedings of Royal Society of London A . pp. 1-21. ISSN 2006-1751

[img]
Preview
PDF
519Kb

Abstract

This paper concerns the mathematical modelling of high rate penetration of a metaltarget by a shaped charge device that produces a high velocity jet. A key objective is to predict the penetration velocity, be it subsonic, transonic, or supersonic. We do this by considering, on the local scale near the tip of the penetrated cavity, an elastic-plastic free boundary problem that takes into account the residual stresses produced by the moving plasticized region of the target. It is the self-consistency of this elastic-plastic model that dictates predictions for the penetration velocity.

Item Type:Article
Uncontrolled Keywords:penetration, shaped charge, free boundary
Subjects:O - Z > Partial differential equations
Research Groups:Oxford Centre for Industrial and Applied Mathematics
ID Code:236
Deposited By:John R. Ockendon
Deposited On:16 Jun 2006
Last Modified:08 Oct 2012 14:26

Repository Staff Only: item control page