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.
Probabilistic Failure of a Cracked Submarine Pipeline Subjected to the Underwater Shock
Contributed by the OMAE Division for publication in the JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING. Manuscript received by the OMAE Division, February 2000; revised manuscript received June 2000. Associate Editor: R. G. Bea.
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Lam , K. Y., Zong, Z., and Wang, Q. X. (June 1, 2000). "Probabilistic Failure of a Cracked Submarine Pipeline Subjected to the Underwater Shock ." ASME. J. Offshore Mech. Arct. Eng. August 2001; 123(3): 134–140. https://doi.org/10.1115/1.1376715
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