IMPROVING DROP TESTS FOR SENSITIVE MUNITIONS
The U.S. Army uses drop tests to verify structural integrity for new munitions. Munitions that cannot survive drop tests, cannot survive use by Warfighters. For a recently-designed fuze, a fuzedmortar could not both pass the drop test and function at low-zone charges. The fuzed-mortar consisted of a supporting structure with fins at one end and a fuze at the other end. Either the fuze would arm during the drop test or the fuze would not arm during the lowest gun charge. Finite element analysis was used to model the drop test and redesign the fuze. Modeling and simulation indicated that friction on the drop surface and the strength of the fins effected whether the fuzed-mortar would function during drop tests. The resulting recommendations include: 1) specify a range of friction coefficients for drop surfaces, 2) use modeling and simulation to verify conformance over the range of materials strengths and dimensions.
L. Reinhardt J.A. Cordes P. Carlncci D. Carlucci
RDAR-MEF-E, Analysis and Evaluation Technology Division, U.S. Army Armament Research Development and Engineering Center, Picatinny Arsenal, NJ
国际会议
25th International Symposium on Ballistics(第25届国际弹道会议)
北京
英文
598-605
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）