Multiple inspection modelling for decision making and management of jacket offshore platforms: effects of False Alarms

Franck Schoefs (1) , Alexandre Clément (1)

1 GeM - Institut de Recherche en Génie Civil et Mécanique

Insertion of inspection results into decision scheme is still a challenge for structural analysis. Methods are generally named Risk Based Inspection. They aimed to provide aid tools to operators of marine structures which have to ensure that structural integrity is maintained at a sufficient level during inservice life or in case of reassessment. The objective is a global optimization of Inspection, Maintenance and Repair plans (IMR), particularly regarding inspections. In this context, original aid tools are presented keeping in mind that Probability of False Alarms must be introduce. Theoretical aspects and using of real data base are both treated. The benefit of multiple subsequent inspections is also discussed.

Mots clés: Non destructive testing; Existing structures; Probability of detection; False alarm; Cost analysis; In-service inspections; Risk Based Inspections

Domaines: Mécanique [physics.med-ph]; Matériaux

Franck Schoefs, Alexandre Clément. Multiple inspection modelling for decision making and management of jacket offshore platforms: effects of False Alarms. First International Forum on Engineering Decision Making, IFED, 2004, Stoos, Switzerland. ⟨hal-01008510⟩