Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel

LIU Wenxiang; ZHANG Dezhi; ZHONG Fangping; CHENG Shuai; ZHANG Qingming

doi:10.11883/bzycj-2017-0056

Volume 38 Issue 5

Jul. 2018

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LIU Wenxiang, ZHANG Dezhi, ZHONG Fangping, CHENG Shuai, ZHANG Qingming. Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel[J]. Explosion And Shock Waves, 2018, 38(5): 1045-1050. doi: 10.11883/bzycj-2017-0056

Citation:

LIU Wenxiang, ZHANG Dezhi, ZHONG Fangping, CHENG Shuai, ZHANG Qingming. Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel[J]. Explosion And Shock Waves, 2018, 38(5): 1045-1050. doi: 10.11883/bzycj-2017-0056

Citation:

LIU Wenxiang, ZHANG Dezhi, ZHONG Fangping, CHENG Shuai, ZHANG Qingming. Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel[J]. Explosion And Shock Waves, 2018, 38(5): 1045-1050. doi: 10.11883/bzycj-2017-0056

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Quasi-static gas pressure generated by explosive charge blasting in a spherical explosion containment vessel

doi: 10.11883/bzycj-2017-0056

1.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
2.
Key Laboratory of Intense Dynamic Loading and Effect, Northwest Institute of Nuclear Technology, Xi'an 710024, Shaanxi, China

Received Date: 2017-02-22
Rev Recd Date: 2017-06-30
Publish Date: 2018-09-25

Abstract

Abstract

Quasi-static pressure is important for the design of explosion containment vessels. Experiments of the spherical vessel under blast loading, in which the quasi-static pressure was measured by the pressure sensors of two different installations, i.e. flush installation and guide-hole installation, were carried out. The data obtained by the pressure sensors are consistent with each other. Based on the formula form derived theoretically, the empirical formula was obtained by fitting the data. The main results are as follows:(1) the pressure in the vessel goes into quasi-static state after the blast wave reflects back and forth three times in the vessel; (2) the quasi-static pressure in the spherical vessel is proportional to the explosion equivalent-to-vessel volume ratio, and the empirical coefficient is 1.10 MPa·m³/kg TNT.
- quasi-static pressure,
- spherical explosion containment vessel,
- explosion equivalent-to-vessel volume ratio,
- pressure sensor

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References(13)

References

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