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Fatigue reliability analysis of fixed offshore structures: A first passage problem approach |
MADHAVAN Pillai T.M., VEENA G. |
Department of Civil Engineering, National Institute of Technology, Calicut 673601, India |
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Abstract This paper describes a methodology for computation of reliability of members of fixed offshore platform structures, with respect to fatigue. Failure criteria were formulated using fracture mechanics principle. The problem is coined as a “first passage problem”. The method was illustrated through application to a typical plane frame structure. The fatigue reliability degradation curve established can be used for planning in-service inspection of offshore platforms. A very limited parametric study was carried out to obtain insight into the effect of important variables on the fatigue reliability.
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Received: 08 March 2006
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