LAN Xiaoying, LI Xiangdong, ZHOU Lanwei, GONG Xiaoze, YAO Zhijun. Critical ricochet angle of cylindrical tungsten fragment impacting aluminum target[J]. Explosion And Shock Waves, 2018, 38(6): 1278-1285. doi: 10.11883/bzycj-2017-0210
Citation:
LAN Xiaoying, LI Xiangdong, ZHOU Lanwei, GONG Xiaoze, YAO Zhijun. Critical ricochet angle of cylindrical tungsten fragment impacting aluminum target[J]. Explosion And Shock Waves, 2018, 38(6): 1278-1285. doi: 10.11883/bzycj-2017-0210
LAN Xiaoying, LI Xiangdong, ZHOU Lanwei, GONG Xiaoze, YAO Zhijun. Critical ricochet angle of cylindrical tungsten fragment impacting aluminum target[J]. Explosion And Shock Waves, 2018, 38(6): 1278-1285. doi: 10.11883/bzycj-2017-0210
Citation:
LAN Xiaoying, LI Xiangdong, ZHOU Lanwei, GONG Xiaoze, YAO Zhijun. Critical ricochet angle of cylindrical tungsten fragment impacting aluminum target[J]. Explosion And Shock Waves, 2018, 38(6): 1278-1285. doi: 10.11883/bzycj-2017-0210
In the present study, we performed theoretical calculation, numerical simulation and experimental test to investigate the ricochet performance of cylindrical fragments. The fragment, 5.7 mm in diameter and 6.7 mm in length, impacted aluminum plates 2-10 mm in thickness at speeds of 800-1 200 m/s. A theoretical model of the ricochet was established, the relation between the critical angle and the initial velocity and the thickness of the target plate were obtained. The results of theoretical calculation agreed well with both the simulation and experiment. The results show that the higher the impacting velocity, the larger the critical ricochet angle; and the thicker the target, the smaller the critical ricochet angle. When a fragment impacts a 2 mm target plate at 800-1 200 m/s, the critical ricochet angle is 81°-81.25°; when a fragment impacts a 4 mm target plate at 800-1 200 m/s, the critical ricochet angle is72.5°-76.25°.
WU Rongbo, CHEN Zhigang, WANG Qinghua. Numerical simulation on the impact effect of incidence angle impacting ricochet[J]. Design and Research, 2011, 10(38):18-32. http://d.old.wanfangdata.com.cn/Periodical/jx201110005
DONG Yucai, DU Zhonghua, LIU Rongzhong, et al. Research on ricochet of tungsten alloy long rod impacting thin steel target with high-velocity[J]. Journal of Ballistics, 2014, 26(1):73-77. http://d.old.wanfangdata.com.cn/Periodical/ddxb201401015
MI Shuangshan, ZHANG Xien, TAO Guiming. Finite element analysis of spherical fragments penetrating LY-12 aluminum alloy target[J]. Explosion and Shock Waves, 2005, 25(5):477-480. doi: 10.3321/j.issn:1001-1455.2005.05.015
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