Experiment of fast cook-off safety characteristic for penetrator

DAI Xianghui; WANG Kehui; SHEN Zikai; DUAN Jian; LI Ming; GU Renhong; LI Pengjie; YANG Hui; KE Ming; ZHOU Gang

doi:10.11883/bzycj/2020-0016

Volume 40 Issue 9

Sep. 2020

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DAI Xianghui, WANG Kehui, SHEN Zikai, DUAN Jian, LI Ming, GU Renhong, LI Pengjie, YANG Hui, KE Ming, ZHOU Gang. Experiment of fast cook-off safety characteristic for penetrator[J]. Explosion And Shock Waves, 2020, 40(9): 092301. doi: 10.11883/bzycj/2020-0016

Citation:

DAI Xianghui, WANG Kehui, SHEN Zikai, DUAN Jian, LI Ming, GU Renhong, LI Pengjie, YANG Hui, KE Ming, ZHOU Gang. Experiment of fast cook-off safety characteristic for penetrator[J]. Explosion And Shock Waves, 2020, 40(9): 092301. doi: 10.11883/bzycj/2020-0016

Citation:

DAI Xianghui, WANG Kehui, SHEN Zikai, DUAN Jian, LI Ming, GU Renhong, LI Pengjie, YANG Hui, KE Ming, ZHOU Gang. Experiment of fast cook-off safety characteristic for penetrator[J]. Explosion And Shock Waves, 2020, 40(9): 092301. doi: 10.11883/bzycj/2020-0016

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Experiment of fast cook-off safety characteristic for penetrator

doi: 10.11883/bzycj/2020-0016

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

Received Date: 2020-01-07
Rev Recd Date: 2020-02-19
Publish Date: 2020-09-01

Abstract

Abstract

To evaluate the fast cook-off safety characteristic of the big-size penetrator, an experimental device was designed. The penetrator with a mass of 290 kg was hoisted at a height of 0.4 m from the aviation fuel level for rapid heating. The surface temperature of the penetrator was collected in real time and the whole experimental process was recorded. The reflected shock wave overpressure at a distance of 7 m from the penetrator centroid was measured. The safety characteristic of the big-size penetrator was analyzed in detail in terms of the heating time, the surface temperature of the penetrator, the damage on experimental site, the peak value of the reflected shock wave overpressure, the reaction mechanism and the response type. The results show that the big-size penetrator starts to react violently at a temperature of 537 ℃ for 16 min and 4 s. The bottom explosive of the penetrator first responds to hot spots under continuous high temperature heating, gradually accumulating high-temperature and high-pressure gas in the shell and tearing the shell to quickly release high-pressure. The peak value of the reflected shock wave overpressure at 7 m is 33.622 kPa, which is much smaller than that caused by the penetrator totally detonated in the air. The reaction characteristic of the penetrator is deflagration, and its fast cook-off safety characteristic meets the standard requirement.
- penetrator,
- fast cook-off,
- safety characteristic,
- shock wave overpressure

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References(21)

References

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