复合杆式射流成型及威力性能的数值模拟及试验验证
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摘要
为了阐明复合杆式射流的性能,设计了8种不同材料的复合球缺罩,包括聚乙烯/铜、铝/铜、钛/铜、铁/铜、铜/铜、钼/铜、钽/铜、钨/铜材料,并采用LS-DYNA软件对其杆式射流的成型过程进行三维数值模拟,分析了杆式射流威力性能,通过静破甲试验验证了数值模拟结果。结果表明,在保持内罩材料为紫铜的条件下,随着外罩材料密度的增大,射流整体速度减小,射流动能随外罩材料密度的增大而减小;在外罩为金属材料时,外罩材料冲击阻抗越大,内罩所受爆轰波透射压力越小,射流整体速度、射流动能随外罩冲击阻抗增大而减小;经对比发现,聚乙烯/铜复合杆式射流整体速度最高,动能最大,破甲威力较佳,铝/铜复合杆式射流次之。静破甲试验结果表明,聚乙烯/铜复合杆式射流对钢靶侵彻深度较铝/铜复合杆式射流有一定提高,与数值模拟结果一致。
To clarify the performance of composite rod-type jet,eight kinds of composite ball imperfection covers with different materials,including polyethylene/copper,aluminum/copper,titanium/copper,iron/copper,copper/copper,molybdenum/copper,tantalum/copper and tungsten/copper,were designed,and three-dimensional numerical simulation of the forming process of rod-type jet was performed by LS-DYNA software,the power performance of the rod-type jet was analyzed,and the numerical simulation results were verified via static armor experiment.The results show that under the condition of keeping the inner cover material as red copper,the overall velocity of jet decreases with increasing the density of outer cover material,while the density of outer cover material increases with inner shell material is copper,and the kinetic energy of jet decreases with increasing the density of outer cover material.When outer cover is made of metal material,the greater the impact resistance of outer cover materials,the smaller the transmission pressure of the detonation wave in the inner cover,and the overall velocity and kinetic energy of the jet decreases with increasing the shock resistance of outer cover.By contrast,it is found that the overall velocity of polyethylene/Cu composite rod-type jet is the highest,the kinetic energy is the largest,and the armor is better,the aluminum/copper composite rod-type jet is the second.The experimental results of static armor show that the penetration depth of the steel/copper composite rod-type jet is better than that of the aluminum/copper composite rod-type jet,which is consistent with the numerical simulation results.
To clarify the performance of composite rod-type jet,eight kinds of composite ball imperfection covers with different materials,including polyethylene/copper,aluminum/copper,titanium/copper,iron/copper,copper/copper,molybdenum/copper,tantalum/copper and tungsten/copper,were designed,and three-dimensional numerical simulation of the forming process of rod-type jet was performed by LS-DYNA software,the power performance of the rod-type jet was analyzed,and the numerical simulation results were verified via static armor experiment.The results show that under the condition of keeping the inner cover material as red copper,the overall velocity of jet decreases with increasing the density of outer cover material,while the density of outer cover material increases with inner shell material is copper,and the kinetic energy of jet decreases with increasing the density of outer cover material.When outer cover is made of metal material,the greater the impact resistance of outer cover materials,the smaller the transmission pressure of the detonation wave in the inner cover,and the overall velocity and kinetic energy of the jet decreases with increasing the shock resistance of outer cover.By contrast,it is found that the overall velocity of polyethylene/Cu composite rod-type jet is the highest,the kinetic energy is the largest,and the armor is better,the aluminum/copper composite rod-type jet is the second.The experimental results of static armor show that the penetration depth of the steel/copper composite rod-type jet is better than that of the aluminum/copper composite rod-type jet,which is consistent with the numerical simulation results.
引文
[1]Hong S C,Niu Y M.Numerical simulation of the multiplayer explosively formed projectle[C]∥Proceedings of the 15th International Symposium on Ballistic.St.Antonio:International Digital Electrontic Access Library,1995:315-324.
[2]付建平,冯顺山,陈智刚,等.复合球缺罩形成复合杆式射流的初步研究[J].中北大学学报(自然科学版),2016,37(1):24-28.FU Jian-ping,FENG Shun-shan,CHEN Zhi-gang,et al.A preliminary study on the formation of complete beam jets by double-layer spherical shell[J].Journal of North University(Natural Science Edition),2016,37(1):24-28.
[3]臧涛成,胡焕性,邵琦.破甲弹复合罩性能研究[J].火炸药学报,1998,21(4):45-48,59.ZANG Tao-cheng,HU Huan-xing,SHAO Qi.Sunder armor elastic composite cover performance study[J].Journal of Explosive&Propellants(Huozhayao Xuebao),1998,21(4):45-48,59.
[4]许世昌.双层含能药型罩射流成型机理及侵彻性能研究[D].南京:南京理工大学,2015.XU Shi-chang.Study on penetration mechanism and penetration performance of double-layer energetic hoods[J].Nanjing:Nanjing University of Science and Technology,2015.
[5]王维占,赵太勇,陈智刚,等.周向约束对杆式射流成型规律的仿真研究[J].弹道学报,2017(1):66-69.WANG Wei-zhan,ZHAO Tai-yong,CHEN Zhi-gang,et al.Circumferential constraints,by which the law of bar type jet molding simulation[J].Journal of Ballistic,2017(1):66-69.
[6]伊建亚,王志军,尹建平,等.不同罩材对K装药性能影响的数值模拟研究[J].兵器材料科学与工程,2016(5):32-36.YI Jian-ya,WANG Zhi-jun,YIN Jian-ping,et al.Different cover material on the numerical simulation study of the influence of the K charging performance[J].Journal of Weapon Materials Science and Engineering,2016(5):32-36.
[7]臧涛成,贾建新,黄丽宏.用聚能装药多层药型罩提高射流速度的研究[J].弹道学报,1995(2):78-82.ZANG Tao-cheng,JIA Jian-xin,HUANG Li-hong.Cover with a shaped charge multilayer medicine type to improve the study of jet velocity of[J].Journal of Ballistic,1995(2):78-82.
[8]李惠明,张怀智,赵东华,等.内外层材料特性对复合EFP的影响研究[J].弹箭与制导学报,2012,32(6):81-82.LI Hui-ming,ZHANG Huai-zhi,ZHAO Dong-hua,et al.Both inside and outside layer of the influence of material properties of double EFP study[J].Journal of Projectiles,Rockets,Missiles and Guidance,2012,32(6):81-82.
[2]付建平,冯顺山,陈智刚,等.复合球缺罩形成复合杆式射流的初步研究[J].中北大学学报(自然科学版),2016,37(1):24-28.FU Jian-ping,FENG Shun-shan,CHEN Zhi-gang,et al.A preliminary study on the formation of complete beam jets by double-layer spherical shell[J].Journal of North University(Natural Science Edition),2016,37(1):24-28.
[3]臧涛成,胡焕性,邵琦.破甲弹复合罩性能研究[J].火炸药学报,1998,21(4):45-48,59.ZANG Tao-cheng,HU Huan-xing,SHAO Qi.Sunder armor elastic composite cover performance study[J].Journal of Explosive&Propellants(Huozhayao Xuebao),1998,21(4):45-48,59.
[4]许世昌.双层含能药型罩射流成型机理及侵彻性能研究[D].南京:南京理工大学,2015.XU Shi-chang.Study on penetration mechanism and penetration performance of double-layer energetic hoods[J].Nanjing:Nanjing University of Science and Technology,2015.
[5]王维占,赵太勇,陈智刚,等.周向约束对杆式射流成型规律的仿真研究[J].弹道学报,2017(1):66-69.WANG Wei-zhan,ZHAO Tai-yong,CHEN Zhi-gang,et al.Circumferential constraints,by which the law of bar type jet molding simulation[J].Journal of Ballistic,2017(1):66-69.
[6]伊建亚,王志军,尹建平,等.不同罩材对K装药性能影响的数值模拟研究[J].兵器材料科学与工程,2016(5):32-36.YI Jian-ya,WANG Zhi-jun,YIN Jian-ping,et al.Different cover material on the numerical simulation study of the influence of the K charging performance[J].Journal of Weapon Materials Science and Engineering,2016(5):32-36.
[7]臧涛成,贾建新,黄丽宏.用聚能装药多层药型罩提高射流速度的研究[J].弹道学报,1995(2):78-82.ZANG Tao-cheng,JIA Jian-xin,HUANG Li-hong.Cover with a shaped charge multilayer medicine type to improve the study of jet velocity of[J].Journal of Ballistic,1995(2):78-82.
[8]李惠明,张怀智,赵东华,等.内外层材料特性对复合EFP的影响研究[J].弹箭与制导学报,2012,32(6):81-82.LI Hui-ming,ZHANG Huai-zhi,ZHAO Dong-hua,et al.Both inside and outside layer of the influence of material properties of double EFP study[J].Journal of Projectiles,Rockets,Missiles and Guidance,2012,32(6):81-82.