空心钨球侵彻性能的研究
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摘要
利用LS-DYNA软件对现有93W球型破片侵彻装甲钢试验结果进行符合计算,对93W合金材料参数进行标定,基于上述数值模拟与试验结果的一致性,进一步研究了93W空心钨球对装甲钢的毁伤效能。研究发现:空心钨球的弹道极限随靶板厚度的增加而增加,且弹道极限随空心钨球孔腔直径的增加呈近似指数型增加,对靶板的开孔直径也逐渐增加;动能一定的条件下,空心钨球余速、剩余动能随孔腔半径的增加呈现先增加后减小的趋势。结果表明:合理选择孔腔直径的空心钨球,可实现余速与开孔兼顾的威力要求。
The LS-DYNA software was used to calculate the test results of the existing 93 W spherical fragment into the armored steel, and the material parameters of the 93 W alloy were calibrated. Based on the above research results, the 93 W hollow tungsten ball was damaged by the armor steel. It is found that the ballistic limit of the hollow tungsten sphere increases with the increase of the thickness of the target plate, and the ballistic limit increases exponentially with the increasing diameter of the tungsten ball cavity, and the diameter of the opening of the target plate also increases gradually. With certain kinetic energy, the residual speed and residual kinetic energy of the tungsten ball increase first with the increase of the radius of the cavity, and then gradually decrease. The results show that the reasonable selection of the tungsten spheres with the diameter of the cavity can achieve the power requirements of both the storage speed and the opening.
The LS-DYNA software was used to calculate the test results of the existing 93 W spherical fragment into the armored steel, and the material parameters of the 93 W alloy were calibrated. Based on the above research results, the 93 W hollow tungsten ball was damaged by the armor steel. It is found that the ballistic limit of the hollow tungsten sphere increases with the increase of the thickness of the target plate, and the ballistic limit increases exponentially with the increasing diameter of the tungsten ball cavity, and the diameter of the opening of the target plate also increases gradually. With certain kinetic energy, the residual speed and residual kinetic energy of the tungsten ball increase first with the increase of the radius of the cavity, and then gradually decrease. The results show that the reasonable selection of the tungsten spheres with the diameter of the cavity can achieve the power requirements of both the storage speed and the opening.
引文
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[13] CZARNECKI G J. Estimation of the V50 using semi-empirical (1-point) procedures [J]. Composites Part B: Engineering, 1998, 29(3): 321-329.
[14] ZUKAS J A. High velocity impact dynamics [M]. New York: John Wiley & Sons, Inc., 1990.
[15] ANDERSON C E, Jr, HOHLER V, WALKER J D, et al. Time-resolved penetration of long rods into steel targets [J].International Journal of Impact Engineering,1995,16(1):1-18.
[16] LAWRENCE D, JOHN C, ANDREW B. Optimization of fragmentation warheads [C]// 24th International Symposium on Ballistics. Lancaster: DEStech Publications Inc., 2008: 1035-1041.
[17] SCHOOF L A, MAESTAS F A, YOUNG C W. Numerical method to predict projectile penetration [C]//4th Annual Symposium on Interaction of Non-nuclear Munitions with Structures. Panama City, US, 1989.
[18] LUK V K, FORRESTAL M J, AMOS D E. Dynamic spherical cavity expansion of strain-hardening materials [J]. Journal of Applied Mechanics, 1991, 58(1): 1-6.
[2] 贾光辉,张国伟,裴思行.钨球对装甲钢板极限贯穿时能耗研究[J].弹箭与制导学报,1997(4):49-53.
[3] 张国伟,贾光辉,李庆.钨球在侵彻装甲钢板中的变形分析[J].华北工学院学报,1997,18(1):71-74.ZHANG G W, JIA G H, LI Q. The analysis of deformation of tungsten spheres in the impact test on armor plates[J]. Journal of North China Institute of Technology, 1997, 18(1): 71-74.
[4] 赵晓旭,王树山,徐豫新,等.钨球高速侵彻低碳钢板成坑直径的计算模型[J].北京理工大学学报,2015,35(12):1217-1221.ZHAO X X, WANG S S, XU Y X, et al. Crater diameter calculation model of tungsten sphere impacting low carbon steel plate at high velocity[J]. Journal of Beijing Institute of Technology, 2015, 35(12): 1217-1221.
[5] 康爱花,陈智刚,付建平.球形破片侵彻高强度装甲钢的弹道极限速度计算[J].中北大学学报(自然科学版),2015,36(6):647-651.KANG A H, CHEN Z G, FU J P. Calculation of ballistic limiting velocities of spherical fragment to high hardness armor steel[J]. Journal of North University of China (Natural Science Edition), 2015, 36(6): 647-651.
[6] 李明星,王志军,黄阳洋,等. 不同形状轴向预制破片的飞散特性研究[J]. 兵器装备工程学报,2017,38(12):65-69.LI M X, WANG Z J, HUANG Y Y, et al. Study on the scattering characteristics of different shape axial prefabricated fragment [J]. Journal of Ordnance Equipment Engineering, 2017,38(12): 65-69.
[7] 张宝銔,丁淳彤,刘宝华,等.钨合金的冲击拉伸行为及其本构和断裂判据的表述[J].中国工程科学,2003,5(3):44-50,74.ZHANG B P, DING C T, LIU B H, et al. Shock tensile behavior of tungsten alloy and presentations to its constitutive models and fracture criterion[J]. Engineering Science, 2003, 5(3):44-50, 74.
[8] 陈志斌,刘志刚.球形弹垂直碰撞金属靶板的实验研究[J].弹道学报,1991(1):66-70.CHEN Z B, LIU Z G. Experimental investigation on the metal target by normal impact of spherical shell[J]. Journal of Ballistics, 1991(1): 66-70.
[9] 沈志刚,于骐.球形破片碰撞金属靶板的试验研究[J].兵工学报弹箭分册,1988(1):62-70.
[10] 午新民. 钨合金球体对有限厚靶板侵彻的理论与试验研究 [D].北京:北京理工大学,1999.WU X M. The theoretical and experimental research on tungsten alloy sphere penetrating limited thickness plate [D]. Beijing: Beijing Institute of Technology, 1999.
[11] 王维占,印立魁,赵太勇,等. 杀爆战斗部装药能量对破片动能的转化率[J]. 爆破器材, 2017, 46(2): 26-30.WANG W Z, YIN L K, ZHAO T Y, et al. Conversion rate of charge energy to kinetic energy of fragments of blast-fragmentation warhead [J]. Explosive Materials, 2017, 46(2):26-30.
[12] YADAV S, REPETTO E A, RAVICHANDRAN G, et al. A computational study of the influence of thermal softening on ballistic penetration in metals [J]. International Journal of Impact Engineering, 2001, 25(8): 787-803.
[13] CZARNECKI G J. Estimation of the V50 using semi-empirical (1-point) procedures [J]. Composites Part B: Engineering, 1998, 29(3): 321-329.
[14] ZUKAS J A. High velocity impact dynamics [M]. New York: John Wiley & Sons, Inc., 1990.
[15] ANDERSON C E, Jr, HOHLER V, WALKER J D, et al. Time-resolved penetration of long rods into steel targets [J].International Journal of Impact Engineering,1995,16(1):1-18.
[16] LAWRENCE D, JOHN C, ANDREW B. Optimization of fragmentation warheads [C]// 24th International Symposium on Ballistics. Lancaster: DEStech Publications Inc., 2008: 1035-1041.
[17] SCHOOF L A, MAESTAS F A, YOUNG C W. Numerical method to predict projectile penetration [C]//4th Annual Symposium on Interaction of Non-nuclear Munitions with Structures. Panama City, US, 1989.
[18] LUK V K, FORRESTAL M J, AMOS D E. Dynamic spherical cavity expansion of strain-hardening materials [J]. Journal of Applied Mechanics, 1991, 58(1): 1-6.