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Numerical Observation of the Jet Flight Patterns of Linear Shaped Charges

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Author(s): Matthew Johnston | Seokbin Lim

Journal: Applied Sciences
ISSN 2076-3417

Volume: 2;
Issue: 3;
Start page: 629;
Date: 2012;
Original page

Keywords: linear shaped charges | jet profile | penetration | hydrocode

ABSTRACT
Linear Shaped Charges (LSCs) have been assumed to function in the same manner as Conical Shaped Charges (CSCs) in the published literature that describes a metallic jet process for penetration. However, based on the facts that the LSC liner is composed of flat surfaces instead of the curved cone shaped liner of a CSC and the LSC detonation propagation is perpendicular to the penetrator projection direction, the approach to investigate the penetrator formation process of LSCs should be examined from a different perspective. Because there are fundamental differences between CSCs and LSCs in the formation of a jet, the cutting performances would be under different regimes. As a preliminary investigation, in this paper, we report a numerical observation of the LSC jetting properties using AUTODYN®.
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