✦ LIBER ✦

Fatigue reliability analysis in time domain for inspection strategy of fixed offshore structures

✍ Scribed by T.M. Madhavan Pillai; A. Meher Prasad

Publisher: Elsevier Science
Year: 2000
Tongue: English
Weight: 319 KB
Volume: 27
Category: Article
ISSN: 0029-8018
DOI: 10.1016/s0029-8018(98)00020-1

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✦ Synopsis

The paper describes a methodology for estimation of reliability of fixed offshore structures with respect to fatigue and extreme stress. The failure criteria for fatigue are formulated using fracture mechanics principle and that for extreme stress using API Code. Advanced Second Moment method is used to find the reliability index. The total life of the structure is divided into a set of stationary sea-states, occurring during storms and described by directional power spectrum. The method has been illustrated through application to a typical jacket platform. Usefulness of the methodology for planning in-service inspections has been highlighted.

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