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Pre-fragmented rod interaction with plate target

: Heine, Andreas; Wickert, Matthias

Ames, R. ; National Defense Industrial Association -NDIA-; International Ballistics Society -IBS-:
28th International Symposium on Ballistics 2014. Proceedings. Vol.2: Terminal Ballistics, Vulnerability & Survivability : Atlanta, Georgia, September 22-26, 2014
Lancaster, Pa.: DEStech Publications, 2014
ISBN: 978-1-60595-149-2
International Symposium on Ballistics <28, 2014, Atlanta/Ga.>
Fraunhofer EMI ()

The induction of yaw and fragmentation is the principal way how a long rod penetrator might be affected by an active protection system. The penetration capability of yawed rods has already been studied extensively in the past for normal as well as for oblique semiinfinite targets. In this paper, we address the basic effect of fragmentation without introducing much yaw. For this purpose, we chose a finite-thickness plate target of high obliquity as a generic but representative armor element and developed a technique for accelerating pre-fragmented rod penetrators against these targets. The obtained results indicate that for long rod fragmentation, even without introducing much pitch and yaw, a strong reduction of the penetration capability into a base armor element behind an oblique plate is to be expected.