Regulation of different quantity TNT blasting in multi-cabin structure based on simulation and dimensional analysis

JIAO Xiaolong; ZHAO Pengduo; YAO Yangwu; ZHANG Lei; LI Xudong; CHI Hai

doi:10.11883/bzyjc-2019-0438

Volume 40 Issue 8

Aug. 2020

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JIAO Xiaolong, ZHAO Pengduo, YAO Yangwu, ZHANG Lei, LI Xudong, CHI Hai. Regulation of different quantity TNT blasting in multi-cabin structure based on simulation and dimensional analysis[J]. Explosion And Shock Waves, 2020, 40(8): 085101. doi: 10.11883/bzyjc-2019-0438

Citation:

JIAO Xiaolong, ZHAO Pengduo, YAO Yangwu, ZHANG Lei, LI Xudong, CHI Hai. Regulation of different quantity TNT blasting in multi-cabin structure based on simulation and dimensional analysis[J]. Explosion And Shock Waves, 2020, 40(8): 085101. doi: 10.11883/bzyjc-2019-0438

Citation:

JIAO Xiaolong, ZHAO Pengduo, YAO Yangwu, ZHANG Lei, LI Xudong, CHI Hai. Regulation of different quantity TNT blasting in multi-cabin structure based on simulation and dimensional analysis[J]. Explosion And Shock Waves, 2020, 40(8): 085101. doi: 10.11883/bzyjc-2019-0438

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Regulation of different quantity TNT blasting in multi-cabin structure based on simulation and dimensional analysis

doi: 10.11883/bzyjc-2019-0438

JIAO Xiaolong^{1, 2
,},
ZHAO Pengduo^{1
,
,},
YAO Yangwu²,
ZHANG Lei¹,
LI Xudong^{1, 2},
CHI Hai^{1, 2}

1.
Naval Research Academy, Beijing 100161, China
2.
School of Mechatronic Engineering, North University of China, Taiyuan 030051, Shanxi, China

Received Date: 2019-11-18
Rev Recd Date: 2020-03-28

Available Online: 2020-07-25

Publish Date: 2020-08-01

Abstract

Abstract

This paper simulated damage effect of the large size multi-cabin structure under internal blast. Cabins were divided into: explosion cabin, coplanar cabin, common boundary cabin and common point cabin, and the damage grade was presented to reflect the destructiveness. This paper studied the regulation of deformation and failure of bulkhead under internal blast by the dimensional analysis, in which a dimensionless damage number was deduced. Furthermore, the number can reflect the characteristics of internal explosive load, material properties and structure. Finally, a rapid damage prediction method was given. The analysis result shows: (1) the characteristics of damage include large deflection deformation, punching failure in the center of plate, tearing along the boundary; (2) the ratio of deflection to thickness (δ/H) has clear linear relationship with the ratio of the quantity to the volume of the cabin (m/V), and so is the ratio of length to thickness of tearing (l/H); (3) the dimensionless damage number and method of rapid damage assessment can reflect the destructiveness, which means the result and analysis method of this paper can provide valuable reference for the research of ship damage.
- internal blast,
- multi-cabin structure,
- damage grade,
- dimensionless damage number,
- rapid damage prediction

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References(23)

References

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