This paper proposes a method for probabilistic collapse analysis of an offshore structure. Wave loads are estimated by using Stokes third-order theory and Morison’s formula. Plastic collapsing is evaluated by taking account of the combined load effect to generate the safety margins, using a matrix method. Probabilistically dominant collapse modes are selected through a branch-and-bound method. The proposed method is successfully applied to a jacket-type offshore platform.
Probabilistic Collapse Analysis of Offshore Structure
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Murotsu, Y., Kishi, M., Okada, H., Ikeda, Y., and Matsuzaki, S. (August 1, 1987). "Probabilistic Collapse Analysis of Offshore Structure." ASME. J. Offshore Mech. Arct. Eng. August 1987; 109(3): 270–277. https://doi.org/10.1115/1.3257020
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