Critical ricochet angle of cylindrical tungsten fragment impacting aluminum target

LAN Xiaoying; LI Xiangdong; ZHOU Lanwei; GONG Xiaoze; YAO Zhijun

doi:10.11883/bzycj-2017-0210

Volume 38 Issue 6

Sep. 2018

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TANG Tie-gang, LI Qing-zhong, LIU Cang-li, GUI Yu-lin. Sizeeffectsofexpandingringbyexplosiveloading[J]. Explosion And Shock Waves, 2010, 30(1): 39-44. doi: 10.11883/1001-1455(2010)01-0039-06

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

TANG Tie-gang, LI Qing-zhong, LIU Cang-li, GUI Yu-lin. Sizeeffectsofexpandingringbyexplosiveloading[J]. Explosion And Shock Waves, 2010, 30(1): 39-44. doi: 10.11883/1001-1455(2010)01-0039-06

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Critical ricochet angle of cylindrical tungsten fragment impacting aluminum target

doi: 10.11883/bzycj-2017-0210

1.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China
2.
Baicheng Ordnance Test Center of China, Baicheng 137001, Jilin, China

Received Date: 2017-06-16
Rev Recd Date: 2017-08-09
Publish Date: 2018-11-25

Abstract

Abstract

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°.
- fragments,
- critical ricochet angle,
- numerical simulation,
- aluminum plate of limited thickness

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References(10)

References

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