Probabilistic failure of a cracked submarine pipeline and subjected to the underwater shock

Article

Lam, K. Y., Zong, Z. and Wang, Q. X.. 2001. "Probabilistic failure of a cracked submarine pipeline and subjected to the underwater shock." Journal of Offshore Mechanics and Arctic Engineering. 123 (3), pp. 134-140. https://doi.org/10.1115/1.1376715
Article Title

Probabilistic failure of a cracked submarine pipeline and subjected to the underwater shock

ERA Journal ID3784
Article CategoryArticle
AuthorsLam, K. Y. (Author), Zong, Z. (Author) and Wang, Q. X. (Author)
Journal TitleJournal of Offshore Mechanics and Arctic Engineering
Journal of Offshore Mechanics and Arctic Engineering: Transactions of the ASME
Journal Citation123 (3), pp. 134-140
Number of Pages7
Year2001
Place of PublicationUnited States
ISSN0892-7219
1528-896X
Digital Object Identifier (DOI)https://doi.org/10.1115/1.1376715
Web Address (URL)https://asmedigitalcollection-asme-org.ezproxy.usq.edu.au/offshoremechanics/article-abstract/123/3/134/445837/Probabilistic-Failure-of-a-Cracked-Submarine?redirectedFrom=fulltext
Abstract

The failure of a cracked submarine pipeline subjected to the underwater explosion shock is probabilistically analyzed in this paper. A simple procedure is presented, in which the Monte Carlo method is used to estimate the bending stress distribution, and an analytical method is used to estimate the fracture failure probability. The results obtained from the present method are compared with those obtained from direct Monte Carlo simulations. Both are in good agreement. From the studies in this paper, it is concluded that the most dangerous case is that the crack is perpendicular to the tension stress. The influence of crack model uncertainty is significant. FOSM method is also used, which greatly underestimates the failure probabilities for the problem studied in this paper.

KeywordsSubmarine Pipeline, Underwater Explosion Shock, Fracture Failure, Crack, Probabilistic Risk Analysis, cracks, underwater vehicles, fracture, failure (mechanical), explosions, shock wave effects
ANZSRC Field of Research 2020401702. Dynamics, vibration and vibration control
490302. Numerical analysis
401706. Numerical modelling and mechanical characterisation
490303. Numerical solution of differential and integral equations
490399. Numerical and computational mathematics not elsewhere classified
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Byline AffiliationsAmerican Society of Mechanical Engineers, United States
Institute of High Performance Computing, Singapore
National University of Singapore
Institution of OriginUniversity of Southern Queensland
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