Development and Validation of Overpressure Response Model in Steel Tunnels Subjected to External Explosion

This study employed C4 explosives to evaluate the overpressure response in steel tunnels subjected to external explosions. The explosive scaled distance of the C4 charge from 2.15 to 3.26 m/kg1/3 was evaluated by experiments and the hydrodynamic finite element code LS-DYNA. The numerical results are...

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Bibliographic Details
Published inApplied sciences Vol. 10; no. 18; p. 6166
Main Authors Hung, Cheng-Wei, Lai, Hsin-hung, Shen, Bor-Cherng, Wu, Pin-Wen, Chen, Tai-An
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.09.2020
Subjects
C4 explosive
Experiments
Explosions
Explosives
LS-DYNA
Military engineering
Military facilities
Overpressure
overpressure in tunnel
Regression analysis
Standard deviation
Steel
Tunnels
Underground explosions
United States > US
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Summary:This study employed C4 explosives to evaluate the overpressure response in steel tunnels subjected to external explosions. The explosive scaled distance of the C4 charge from 2.15 to 3.26 m/kg1/3 was evaluated by experiments and the hydrodynamic finite element code LS-DYNA. The numerical results are in agreement with the experimental results. A simple way to estimate the overpressure in steel tunnels was proposed in this paper. The proposed methodology is both useful and efficient and can be further developed for designing protection for military structures and other facilities against explosion.
ISSN:2076-3417
2076-3417
DOI:10.3390/app10186166