EFP成型数值模拟及侵彻45钢靶试验研究
|
摘要
为研究EFP的成型机理和侵彻性能,在目前药型罩材料研究和应用的基础上,对EFP成型过程的数学模型进行推导,采用有限元分析软件LS-DYNA,对同一结构紫铜、钽和钽钨药型罩EFP成型过程进行数值模拟,通过靶试对3种材料药型罩EFP的侵彻性能进行试验研究。结果表明:紫铜、钽和钽钨药型罩数值模拟着靶速度与试验测得着靶速度基本长径比较为合理,有利于提升侵彻性能;钽钨药型罩能有效穿透80 m(889倍装药口径距离)处90 mm(1.0倍装药口径)厚的45钢靶板,靶板正面和背面穿孔直径较大,靶后靶体的崩落面积较大,后效毁伤效果好。EFP通过数值模拟和试验结果对比分析,对3种材料药型罩EFP的成型形状和对钢靶的侵彻能力作出评价,为EFP型罩材料的选择提供技术参考。
In order to study the forming mechanism and penetration performance of EFP,the mathematical model of the forming process of EFP was deduced on the basis of the current research and application of the liner material. The EFP forming process of the liner with the same structure of copper,tantalum and tungsten?tantalum was numerically simulated using the software LS-DYNA. The results show that the simulated target speed of copper,tantalum and tungsten?tantalum liner is basically consistent with the measured target speed. The shapes of three kinds of material liner EFP are different. The tantalum?tungsten liner can effectively penetrate the No. 45 steel target plate,which is 90 mm(1.0 times the charge caliber)thick ata distance of 80 m from the target plate(889 times the charge caliber distance). The perforation diameter on the front and back of the target plate is large. The penetration performance of copper and tantalum is not as good as that of tungsten?tantalum liner. Through numerical simulation and comparative analysis of experimental results,the forming shape and penetration ability of EFP of three kinds of material liner were evaluated,which provides technical reference for the selection of EFP warhead material.
In order to study the forming mechanism and penetration performance of EFP,the mathematical model of the forming process of EFP was deduced on the basis of the current research and application of the liner material. The EFP forming process of the liner with the same structure of copper,tantalum and tungsten?tantalum was numerically simulated using the software LS-DYNA. The results show that the simulated target speed of copper,tantalum and tungsten?tantalum liner is basically consistent with the measured target speed. The shapes of three kinds of material liner EFP are different. The tantalum?tungsten liner can effectively penetrate the No. 45 steel target plate,which is 90 mm(1.0 times the charge caliber)thick ata distance of 80 m from the target plate(889 times the charge caliber distance). The perforation diameter on the front and back of the target plate is large. The penetration performance of copper and tantalum is not as good as that of tungsten?tantalum liner. Through numerical simulation and comparative analysis of experimental results,the forming shape and penetration ability of EFP of three kinds of material liner were evaluated,which provides technical reference for the selection of EFP warhead material.
引文
[1]杨绍卿.灵巧弹药工程[M].北京:国防工业出版社,2010:219-227.
[2]隋树元,王树山.终点效应学[M].北京:国防工业出版社,2000:194-199.
[3]HELD M. Self?forging fragmentation charges[C]. 3th Interna?tional symposium on Ballistics,Karlsruhe,Germany,1977.
[4]丁力,蒋建伟,门建兵,等.爆炸成型弹丸成型过程中的断裂数值模拟及机理分析[J].兵工学报,2017,38(3):417-423.
[5]李传增,王树山,荣竹.爆炸成型弹丸对装甲靶板的高速冲击效应研究[J].振动与冲击,2011,30(4):91-94.
[6]杨冬梅,陈惠武,官程. EFP飞行及威力试验研究[J].弹道学报,2000,12(4):82-85.
[7]黄正祥.聚能装药理论与实践[M].北京:北京理工大学出版社,2014:244-287.
[8]吴晗玲,段卓平,汪永庆.杆式射流形成的数值模拟研究[J].爆炸与冲击,2006,26(4):328-332.
[9]樊雪飞,李伟兵,王晓鸣,等.爆轰驱动钽药型罩形成双模毁伤元仿真与试验研究[J].兵工学报,2017,38(10):1918-1925.
[10]张先峰,陈惠武,赵有守. EFP对有限厚靶板侵彻过程及后效研究[J].爆炸与冲击,2006,26(4):324-327.
[11]宋梅利,李伟兵,王晓鸣,等.药型罩材料影响EFP成型的数值计算研究[J].火工品,2009(4):16-19.
[12]樊菲,李伟兵,王晓鸣,等.药型罩材料对JPC成型的影响[J].火炸药学报,2010,33(2):36-39.
[13]叶方伟.钽及其合金[J].材料导报,1997,11(2):27-30.
[2]隋树元,王树山.终点效应学[M].北京:国防工业出版社,2000:194-199.
[3]HELD M. Self?forging fragmentation charges[C]. 3th Interna?tional symposium on Ballistics,Karlsruhe,Germany,1977.
[4]丁力,蒋建伟,门建兵,等.爆炸成型弹丸成型过程中的断裂数值模拟及机理分析[J].兵工学报,2017,38(3):417-423.
[5]李传增,王树山,荣竹.爆炸成型弹丸对装甲靶板的高速冲击效应研究[J].振动与冲击,2011,30(4):91-94.
[6]杨冬梅,陈惠武,官程. EFP飞行及威力试验研究[J].弹道学报,2000,12(4):82-85.
[7]黄正祥.聚能装药理论与实践[M].北京:北京理工大学出版社,2014:244-287.
[8]吴晗玲,段卓平,汪永庆.杆式射流形成的数值模拟研究[J].爆炸与冲击,2006,26(4):328-332.
[9]樊雪飞,李伟兵,王晓鸣,等.爆轰驱动钽药型罩形成双模毁伤元仿真与试验研究[J].兵工学报,2017,38(10):1918-1925.
[10]张先峰,陈惠武,赵有守. EFP对有限厚靶板侵彻过程及后效研究[J].爆炸与冲击,2006,26(4):324-327.
[11]宋梅利,李伟兵,王晓鸣,等.药型罩材料影响EFP成型的数值计算研究[J].火工品,2009(4):16-19.
[12]樊菲,李伟兵,王晓鸣,等.药型罩材料对JPC成型的影响[J].火炸药学报,2010,33(2):36-39.
[13]叶方伟.钽及其合金[J].材料导报,1997,11(2):27-30.