Structural Integrity Evaluation of Jackets submitted to through-cracks - Ecole Centrale de Nantes Accéder directement au contenu
Communication Dans Un Congrès Année : 2003

Structural Integrity Evaluation of Jackets submitted to through-cracks

Résumé

The study of the impact of through cracks on structural integrity of jacket platforms still a challenge. The detection of such cracks is of great importance and a miss, or a spurious indication can lead to maintenance costs overrun. In the context of risk-based inspection and monitoring of such structures, a global methodology is proposed. The detection of large cracks is first addressed. A probabilistic model is proposed, taking into account the in situ inspections performances and the probability of crack presence. This is achieved by the use of the detection theory. Second, a finite element that is able to represent the structural behaviour of through cracked tubular nodes is proposed and a global structural integrity measure is suggested. Finally, inspection results are introduced in order to compute the expected platform structural integrity. It is illustrated by considering FMD inspections results of a tripod structure. Effects of false alarms can then be underlined.
Fichier principal
Vignette du fichier
Schoefs2002.pdf (187.81 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01008967 , version 1 (09-10-2020)

Licence

Paternité

Identifiants

Citer

A. Rouhan, Franck Schoefs. Structural Integrity Evaluation of Jackets submitted to through-cracks. 21th international conference on Offshore Mechanics and Arctic Engineering (OMAE02), 2003, Oslo, Norway. ⟨10.1115/OMAE2002-28310⟩. ⟨hal-01008967⟩
121 Consultations
58 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More