Reinforced, Dense High-Explosive Fills for Gun Launch

Report No. ARL-TR-6204
Authors: Michael A. Minnicino
Date/Pages: September 2012; 22 pages
Abstract: Warhead concepts for low collateral damage munitions typically require a polymer composite warhead in conjunction with dense high-explosive (HE) fills. The use of these dense HEs creates significant design, performance, and safety issues. Structural integrity requires that the warhead sidewall be able to withstand gun-launch loads that include the loading from the dense HE fill. A competing requirement is that the performance of the low-collateral warhead is strongly influenced by the burst strength of the warhead sidewall. One approach to reduce the required warhead sidewall burst strength is to design a reinforcement system that effectively redistributes that loading. For demonstration purposes, a hexagonal honeycomb structure is used to reinforce the dense HE. The finite-element analyses show that the honeycomb structure is effective in reducing the sidewall load and greatly reduces the warhead's required burst strength to survive gun launch. This report details these analyses.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2012