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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August 2001
Technical Papers
Probabilistic Failure of a Cracked Submarine Pipeline Subjected to the Underwater Shock
K. Y. Lam, Mem. ASME,
K. Y. Lam, Mem. ASME
Institute of High Performance Computing, Singapore Science Park I, Singapore 118261
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Z. Zong,
Z. Zong
Institute of High Performance Computing, Singapore Science Park I, Singapore 118261
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Q. X. Wang
Q. X. Wang
Department of Mechanical and Production Engineering, National University of Singapore, Singapore 119260
Search for other works by this author on:
K. Y. Lam, Mem. ASME
Institute of High Performance Computing, Singapore Science Park I, Singapore 118261
Z. Zong
Institute of High Performance Computing, Singapore Science Park I, Singapore 118261
Q. X. Wang
Department of Mechanical and Production Engineering, National University of Singapore, Singapore 119260
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.
J. Offshore Mech. Arct. Eng. Aug 2001, 123(3): 134-140 (7 pages)
Published Online: June 1, 2000
Article history
Received:
February 1, 2000
Revised:
June 1, 2000
Citation
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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