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Original Articles

Risk assessment based on performantial criterion for inspection of offshore structures in presence of large cracks

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Pages 531-547 | Published online: 04 Oct 2011
 

ABSTRACT

When performing risk analysis, it is often uneasy to find the link between limit state and consequences. This paper focuses on efficiency based limit states in case of large cracks on offshore structures. Randomness and uncertainties on loading as well as on crack measurement and detection are introduced.

RÉSUMÉ

Les analyses de risque sont souvent délicates par manque de lien direct entre la fonction d'état et les conséquences. Cet article propose des fonctions d'état de type performantiel (déplacement) dans le cas d'apparitions de fissures traversantes dans des tubes métalliques de structures offshore. Les aléas sur le chargement, la mesure de la fissure et la performance des inspections sont intégrés dans l'analyse de risque.

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