Application of the ALE technique for underwater explosion analysis of a submarine liquefied oxygen tank

The design of submarines has continually evolved to improve survivability. Explosions may induce local damage as well as global collapse to a submarine. Therefore, it is important to realistically estimate the possible damage conditions due to underwater explosions in the design stage. The present s...

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Published in:Ocean engineering 2008-06, Vol.35 (8), p.812-822
Main Authors: Kim, Jae-Hyun, Shin, Hyung-Cheol
Format: Article
Language:English
Subjects:
Applied sciences
Arbitrary Lagrangian–Eulerian (ALE)
Exact sciences and technology
Fluid–structure interaction techniques
Ground, air and sea transportation, marine construction
Miscellaneous transportation
Survivability
Underwater explosion
Vulnerability
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description The design of submarines has continually evolved to improve survivability. Explosions may induce local damage as well as global collapse to a submarine. Therefore, it is important to realistically estimate the possible damage conditions due to underwater explosions in the design stage. The present study applied the Arbitrary Lagrangian–Eulerian (ALE) technique, a fluid–structure interaction approach, to simulate an underwater explosion and investigate the survival capability of a damaged submarine liquefied oxygen tank. The Lagrangian–Eulerian coupling algorithm, the equations of state for explosives and seawater, and the simple calculation method for explosive loading were also reviewed. It is shown that underwater explosion analysis using the ALE technique can accurately evaluate structural damage after attack. This procedure could be applied quantitatively to real structural design.
doi_str_mv 10.1016/j.oceaneng.2008.01.019
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subjects Applied sciences
Arbitrary Lagrangian–Eulerian (ALE)
Exact sciences and technology
Fluid–structure interaction techniques
Ground, air and sea transportation, marine construction
Miscellaneous transportation
Survivability
Underwater explosion
Vulnerability
title Application of the ALE technique for underwater explosion analysis of a submarine liquefied oxygen tank
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