Two-stage irregular projectile penetration resistance analysis

摘要：

　　In order to improve the penetrating ability of theearth penetration weapons (EPW),based on dynamic cavity expansion, the derivation of penetration resistance formula for the projectile with two-stage irregular nose is conducted with the variable of projectilenose shape factor.Then, the variation of the factor of the projectileswith different nose shapesandtheogive-nose projectile with equal warhead lengthwith the ratio of diameters ξ of the two-stage warhead is compared.Finally, it is assumed that the pre-penetratedcavity can weakens the penetration resistance,and it is verified by numerical simulation that ξ ≈ 0.6 is the optimal value.In the case where the traditional method cannot explain the experimental results, a consistent conclusion is obtained through reasonable hypothesis, which can provide reference for the theoretical analysis of penetration resistance and the optimization design of the irregular projectile.

关键词： Dynamic cavity expansion Irregular head Nose shape Pre-penetration

作者: Zhi-cheng FENG Ya-yun ZHAO Lin LI Tian-xiong LI Yu-xi XIE Yu-xin SUN

作者单位: National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing,210094,Jiangsu, China

会议类型: 国际会议

会议名称: 2018 International Conference on Defence Technology (2018国际防务技术会议)

会议地点: 北京

会议语种:英文

页码: 584-587

在线出版日期: 2018-10-21（万方平台首次上网日期，不代表论文的发表时间）