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

Lam, K. Y. and Zong, Z. and Wang, Q. X. ORCID: https://orcid.org/0000-0003-0626-1538 (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. ISSN 0892-7219


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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 13 Apr 2022 04:00
Last Modified: 09 Jun 2022 01:23
Uncontrolled Keywords: Submarine Pipeline, Underwater Explosion Shock, Fracture Failure, Crack, Probabilistic Risk Analysis, cracks, underwater vehicles, fracture, failure (mechanical), explosions, shock wave effects
Fields of Research (2020): 40 ENGINEERING > 4017 Mechanical engineering > 401702 Dynamics, vibration and vibration control
49 MATHEMATICAL SCIENCES > 4903 Numerical and computational mathematics > 490302 Numerical analysis
40 ENGINEERING > 4017 Mechanical engineering > 401706 Numerical modelling and mechanical characterisation
49 MATHEMATICAL SCIENCES > 4903 Numerical and computational mathematics > 490303 Numerical solution of differential and integral equations
49 MATHEMATICAL SCIENCES > 4903 Numerical and computational mathematics > 490399 Numerical and computational mathematics not elsewhere classified
Identification Number or DOI: https://doi.org/10.1115/1.1376715
URI: http://eprints.usq.edu.au/id/eprint/47466

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