杆弹头部形状对侵彻行为的影响及其机制  

Effect of Nose Shape on Penetration Performance of Long-rod Penetrator and Its Mechanism

作　　者：高光发[1,2] 李永池[2] 黄瑞源[2] 李平[2] 

机构地区：[1]安徽理工大学能源与安全学院,煤矿安全高效开采省部共建教育部重点实验室,安徽淮南232001 [2]中国科学技术大学近代力学系中科院材料力学行为和设计重点实验室,合肥230027

出　　处：《弹箭与制导学报》2012年第6期51-54,共4页Journal of Projectiles,Rockets,Missiles and Guidance

基　　金：国家自然科学基金(10632080);武器装备探索研究项目;国防973项目;中国博士后科学基金(2011M501394);安徽省自然科学基金(1208085QE86);安徽省高校省级优秀青年人才基金(2012SQRL049ZD);安徽理工大学博士基金(2011yb007)资助

摘　　要：为探讨不同靶板类型时杆弹头部形状对侵彻行为的影响,对几种头部形状杆弹进行了数值仿真。研究表明:靶板为4340钢且入射速度较小时,杆弹头部形状对侵彻行为有一定的影响,最优头部形状是半球形,速度较大时,头部形状只在开坑阶段对侵彻行为造成影响,对弹体的最终侵彻效率影响并不大;靶板为混凝土时,头部形状对侵彻行为有很大的影响,卵形头部弹体的侵彻能力明显强于其它两种头部形状的弹体;并对其影响机制进行了深入的研究。Aimed at the influence laws and mechanism of the nose shapes of the rod penetrators on penetrating performance,the research on rod penetrators with different nose shape vertical penetrating was carried on.The results show that for the 4340 steel target,the nose shape of the penetrator has some influence on penetration depth if the incident velocity is rather small,but the optimal shape is semi-spherical rather than ogival or flat,however,if the incident velocity is big enough,the effect of nose shape on penetration efficiency is very little and which only has some influence on it in the cratering stage;For the concrete target,the nose shape has great influence on the penetration behavior and the penetration performance of the ogive-nose penetrator is distinctly better than the other two.The effect mechanism of which was also investigated.

关 键 词：爆炸力学 侵彻 头部形状 

分 类 号：TJ760.1[兵器科学与技术—武器系统与运用工程] O385[理学—流体力学]