Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target

QIAN Bingwen; ZHOU Gang; LI Jin; LI Yunliang; ZHANG Dezhi; ZHANG Xiangrong; ZHU Yurong; TAN Shushun; JING Jiyong; ZHANG Zidong

doi:10.11883/bzycj-2019-0141

Volume 39 Issue 8

Aug. 2019

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Article Navigation > Explosion And Shock Waves > 2019 > 39(8): 083301

QIAN Bingwen, ZHOU Gang, LI Jin, LI Yunliang, ZHANG Dezhi, ZHANG Xiangrong, ZHU Yurong, TAN Shushun, JING Jiyong, ZHANG Zidong. Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target[J]. Explosion And Shock Waves, 2019, 39(8): 083301. doi: 10.11883/bzycj-2019-0141

Citation:

QIAN Bingwen, ZHOU Gang, LI Jin, LI Yunliang, ZHANG Dezhi, ZHANG Xiangrong, ZHU Yurong, TAN Shushun, JING Jiyong, ZHANG Zidong. Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target[J]. Explosion And Shock Waves, 2019, 39(8): 083301. doi: 10.11883/bzycj-2019-0141

Citation:

QIAN Bingwen, ZHOU Gang, LI Jin, LI Yunliang, ZHANG Dezhi, ZHANG Xiangrong, ZHU Yurong, TAN Shushun, JING Jiyong, ZHANG Zidong. Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target[J]. Explosion And Shock Waves, 2019, 39(8): 083301. doi: 10.11883/bzycj-2019-0141

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Penetration depth of hypervelocity tungsten alloy projectile penetrating concrete target

doi: 10.11883/bzycj-2019-0141

Northwest Institute of Nuclear Technology, Xi’an 710024, Shaanxi, China

Received Date: 2019-04-21
Rev Recd Date: 2019-06-11
Publish Date: 2019-08-01

Abstract

Abstract

In this paper we carried out experiments using two-stage light gas gun with Gram-grade cylindrical tungsten alloy projectiles, impacting concrete targets at velocity from 1.82 km/s to 3.66 km/s ton investigate the cratering mechanism of concrete targets in hypervelocity impact conditions. We obtained the penetration depth and residual length of the projectiles using computerized tomography (CT) and used the numerical simulation results conducted by Euler algorithm to further examine the mechanism of hypervelocity impact, and achieved the following results: (1) The craters were structured by spalling areas and bullet holes; (2) The penetration depth increases at first and then decreases with the increase of the impact velocities, and the maximum penetration depth was 8.5 times that of the projectile length, which showed no significant advantage over low velocity penetration; (3) According to the pressure of the interface of the projectiles and targets, the penetration processes were divided into four stages, of which the quasi-steady stage and the third stage were crucial in determining the total penetration depth; (4) When the projectiles were completely eroded with the increase of the impact velocities, the penetration depth of the quasi-steady stages almost remained the same and the penetration depth of the third stage decreased so that the total penetration depth was observed to increase at first and then decrease.
- hypervelocity impact,
- penetration depth,
- two-stage light gas gun,
- concrete target,
- computerized tomography(CT)

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References(15)

References

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