含能材料Issue(5)：594-599,6.DOI:10.3969/j.issn.1006-9941.2014.05.004
多点起爆装药结构参数对尾翼 EFP 成型的影响
Effects of Multi-point Initiation Charge Configuration Parameters on EFP with Fins Formation
摘要
Abstract
Multi-point initiation explosively formed projectile(EFP)charges with different N( the number of initiation points),DI ( the diameter of annular initiation),LC/DC(the length /diameter of charge)were studied by LS-DYNA program. program The in-fluences of multi-point initiation charge configuration parameters,such as N,DI ,LC/DC ,on the formation parameters of EFP with fins were studied. The results of numerical simulation indicate that there are remarkable effects of N,DI and LC/DC on the forma-tion parameters,including v,LE /DE(the length /diameter),WS/DE(the wingspan /diameter)of EFP with fins. The number of fins is equal to the number of initiation points. When the N is 4,the WS/DE of EFP with fins approaches the maximum. Increasing DI and LC /DC effectively enhances the v and LE /DE of EFP with fins. The formation parameters of EFPs formed by hemispherical liner with uniform or variational wall-thickness were compared. Results indicate that hemispherical liner with variational wall-thickness is a more feasible option. When N =4,DI =40 mm,and LC/DC =0. 8 respectively,EFP with more appropriate configuration can be approached.关键词
爆炸力学/多点起爆/尾翼 EFP/数值模拟Key words
explosion mechanics/multi-point initiation/EFP with fins/numerical simulation分类
军事科技引用本文复制引用
刘建青,顾文彬,徐浩铭,陆鸣,武双章..多点起爆装药结构参数对尾翼 EFP 成型的影响[J].含能材料,2014,(5):594-599,6.基金项目
国家科技支撑计划 （）
