Cut-off velocity of shaped-charge jet

Eitan Hirsch, Meir Mayseless, Michael Dolinski

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In studying the cutoff velocity mechanism of ideal jets that do not drift, it is predicted by the SCAN code that the minimum possible ratio between the hole and the jet radius in the penetration of copper jet into steel, is 2.383 regardless of the steel target hardness. This value is calculated from the Tate's model, as is presented in the paper. When the ideal jet penetrates further than this minimum the crater widens. As a result the jet material flows backwards into the incoming jet flow. This is shown by simulation to give rise to interference that is expected to causes an inevitable cutoff in the penetration process, even for a fully straight jet. The jet velocity value at this point represents a limit value for the maximum penetration depth of this jet, and it depends on the target material strength.

Original languageEnglish
Title of host publicationGeneral, Terminal Ballistics and Impact Physics
EditorsMatthias Wickert, Manfred Salk
PublisherDEStech Publications Inc.
Pages1735-1744
Number of pages10
ISBN (Electronic)9781605951065
StatePublished - 1 Jan 2013
Externally publishedYes
Event27th International Symposium on Ballistics, BALLISTICS 2013 - Freiburg, Germany
Duration: 22 Apr 201326 Apr 2013

Publication series

NameProceedings - 27th International Symposium on Ballistics, BALLISTICS 2013
Volume2

Conference

Conference27th International Symposium on Ballistics, BALLISTICS 2013
Country/TerritoryGermany
CityFreiburg
Period22/04/1326/04/13

ASJC Scopus subject areas

  • Mechanical Engineering
  • Computational Mathematics
  • Modeling and Simulation

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