Numerical and Experimental Research on Ceramic/Rubber/Steel Composite Armor Penetrated by Jet
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摘要: 运用LS-DYNA动力学分析软件,对具有不同橡胶夹层厚度的陶瓷/橡胶/钢复合靶在30°和60°倾角下的射流侵彻情况进行了数值模拟。采用聚能装药基准弹,进行了剩余穿深实验,研究了射流侵彻陶瓷/橡胶/钢复合靶后射流速度、靶板变形和剩余穿深,分析了倾角和橡胶夹层厚度对复合靶抗射流侵彻性能的影响机理。结果表明:射流侵彻陶瓷/橡胶/钢复合靶的性能受倾角的影响很大,尤其是在大倾角下影响更为显著;橡胶夹层对射流侵彻性能有一定的影响,但其厚度的变化对射流侵彻性能的影响很小。
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关键词:
- 射流 /
- 侵彻性能 /
- 陶瓷/橡胶/钢复合靶 /
- 剩余穿深 /
- 射流头部速度
Abstract: Numerical simulation and analysis of jet penetration in ceramic/rubber/steel composite armor with different rubber interlayer thicknesses at the impact angles of 30° and 60° were conducted by applying LS-DYNA dynamic analysis software.The jet velocity, target deformation and remaining penetration depth were obtained through the standard shaped charge experiment, and the effects of inclination angle and rubber interlayer thickness on the anti-jet penetration property of composite armor were analyzed.The results show that the inclination angle has a great influence on the defense property of ceramic/rubber/steel composite armor against shaped charge jet, especially large inclination angle; the rubber interlayer has a certain impact on the penetration performance of jet, however the effect of its thickness is quite small. -
表 1 JH-2炸药的C-J参数和JWL状态方程参数
Table 1. C-J parameters and JWL state equation parameters of JH-2 explosive
ρ/(g/cm3) D/(m/s) e0/(kJ/cm3) pCJ/(GPa) A/(GPa) B/(GPa) ω R1 R2 1.72 8 425 10.2 30.4 852.4 1.802 0.38 4.6 1.3 表 2 材料参数
Table 2. Material parameters
Material ρ/(g/cm3) σb/(MPa) σbc/(MPa) σs/(MPa) E/(MPa) ε5/(%) HB HRC HA Liner 8.9 208 128 54 42 Ceramic 3.8 1 300 340 52.5 Rubber 1.3 20 400 75 Q235 steel 7.85 375 235 26 45 steel 7.85 630 370 17 表 3 射流侵彻陶瓷/橡胶/钢复合靶后的头部速度和剩余穿深
Table 3. Head speed and remaining penetration depth of jet after penetrating the ceramic/rubber/steel composite armor
α/(°) d/(mm) vj/(m/s) hres/(mm) α/(°) d/(mm) vj/(m/s) hres/(mm) 30 3 6 078 110 60 3 5 786 100 30 4 6 130 119 60 4 5 636 105 30 5 6 183 114 60 5 5 564 102 表 4 实验结果
Table 4. Experimental results
α/(°) d/(mm) vj/(m/s) hres/(mm) 30 4 6 263 114 60 4 5 652 95 -
[1] 魏雪英, 张春燕, 马淑芳.射流侵彻作用下陶瓷材料的性态与阻力[J].兵工学报, 2005, 26(4): 481-485.Wei X Y, Zhang C Y, Ma S F. Resistance and property of ceramic target against shaped-charge jet penetration[J]. Acta Armamentarii, 2005, 26(4): 481-485. (in Chinese) [2] 张先锋, 李永池, 于少娟.氧化锆增韧陶瓷抗射流侵彻实验研究[J].实验力学, 2007, 22(6): 631-636.Zhang X F, Li Y C, Yu S J. An experimental study on anti-penetration process of zirconia toughened alumina ceramic target to shaped charge jet[J]. Journal of Experimental Mechanics, 2007, 22(6): 631-636. (in Chinese) [3] Colakoglu M, Soykasap O, Özek T. Experimental and numerical investigations on the ballistic performance of polymer matrix composites used in armor design[J]. Appl Compos Mater, 2007, 14(1): 47-58. doi: 10.1007/s10443-006-9030-y [4] 熊杰, 肖庆亮.织物-树脂复合材料层压板的准静态侵彻机理[J].材料科学与工程学报, 2003, 21(1): 43-45.Xiong J, Xiao Q L. Quasi-static penetration mechanism of composite laminates[J]. Materials Science and Engineering, 2003, 21(1): 43-45. (in Chinese) [5] 祖旭东, 黄正祥, 顾晓辉.聚乙烯橡胶抗射流侵彻数值仿真研究[J].系统仿真学报, 2010, 22(1): 56-59.Zu X D, Huang Z X, Gu X H. Simulation analysis on ploy-rubber resisted jet penetrating[J]. Journal of System Simulation, 2010, 22(1): 56-59. (in Chinese) [6] 祖旭东, 黄正祥, 顾晓辉.橡胶复合靶板抗射流的侵彻防护效能实验研究[J].弹道学报, 2011, 23(1): 54-57.Zu X D, Huang Z X, Gu X H. Experiment study of defense efficiency about rubber composite armor against shaped charge jet[J]. Journal of Ballistics, 2011, 23(1): 54-57. (in Chinese) [7] 祖旭东, 黄正祥, 贾鑫, 等.橡胶夹层厚度对复合靶板抗射流侵彻性能的影响[J].高压物理学报, 2012, 26(5): 551-556. http://www.cqvip.com/QK/96553X/201205/43935772.htmlZu X D, Huang Z X, Jia X, et al. Effects of composite armor with different rubber sandwich thickness against the shaped charge jet penetration[J]. Chinese Journal of High Pressure Physics, 2012, 26(5): 551-556. (in Chinese) http://www.cqvip.com/QK/96553X/201205/43935772.html [8] 时党勇, 李裕春, 张胜民.基于ANSYS/LS-DYNA 8.1进行显式动力分析[M].北京: 清华大学出版社, 2005: 313-330.Shi D Y, Li Y C, Zhang S M. Explicit Dynamical Analysis Based on ANSYS/LS-DYNA 8.1[M]. Beijing: Tsinghua University Press, 2005: 313-330. (in Chinese) [9] 郭伟国, 李玉龙, 索涛.应力波基础简明教程[M].西安: 西北工业大学出版社, 2007.Guo W G, Li Y L, Suo T. Brief Introduction of Stress Wave Theory[M]. Xi'an: Northwestern Polytechnical University Press, 2007. (in Chinese)