切割式多爆炸成形弹丸成形及对钢靶的穿甲效应  

Formation of incised multiple explosively-formed projectiles and their armor-piercing effect against steel target

作　　者：赵长啸[1,2] 龙源[1] 余道强 纪冲[1] 张洋溢 徐浩铭[1] 

机构地区：[1]解放军理工大学野战工程学院,江苏南京210007 [2]北京理工大学爆炸科学与技术国家重点实验室,北京100081 [3]总装工程兵科研一所,江苏无锡214035 [4]广州军区工程科研设计所,广东广州510515

出　　处：《爆炸与冲击》2013年第2期186-193,共8页Explosion and Shock Waves

基　　金：爆炸科学与技术国家重点实验室开放基金项目(KFJJ10-2M);解放军理工大学预先研究基金项目(2009GC10);解放军理工大学工程兵工程学院青年基金项目(424134612)

摘　　要：基于60mm弧锥结合罩EFP装药,设计了一种在药型罩前适当位置安装可抛掷的十字形网栅的切割式多爆炸成形弹丸战斗部结构,并进行了靶场静爆实验。由实验结果可知,该战斗部经网栅切割后能形成5枚具有一定质量和方向性、可贯穿6mm厚45钢靶的弹丸,有效提高了毁伤元的数量和毁伤面积。利用LS-DYNA程序对弹丸侵彻45钢靶过程进行了数值模拟,分析了弹丸侵彻钢靶过程。通过对中心弹丸穿靶模拟数据的处理,得到了其余尺寸弹丸侵彻不同厚度45钢靶的极限穿透速度计算公式,该公式可对相关切割式多爆炸成形弹丸战斗部威力优化设计和评估提供依据。Based on the 60-ram-diameter explosively-formed projectile （EFP） warhead with an are-cone liner, a multiple explosively-formed projectile （MEFP） warhead was designed by fixing an ejectable cross-shaped reseau in a proper place in front of the liner as the cutting device. And the armor-piercing effect of the designed MEFP warhead was investigated by carrying out static-explosion tests. The re- sults indicate that the designed warhead can be cut into 5 EFPs which have a certain mass and direc- tion, and can penetrate through a 6-ram thick 45 steel target. It is effective to increase damage ele- ments and damage area. The process of the MEFPs penetrating through the 45 steel targets was nu- merically analyzed by using LS DYNA3D. The ballistic limiting velocity formula of the EFPs with different sizes and structures were obtained by processing the simulated data of the center EFP pene- trating through the 45 steel target.

关 键 词：爆炸力学 侵彻 切割网栅 多爆炸成形弹丸战斗部 

分 类 号：O385[理学—流体力学] TJ410.33[理学—力学]