System Effects in Generic Risk Based Inspection Planning

Reliability and risk based inspection planning (RBI) has been developed in the past for single details subject to fatigue based on structural reliability analysis. This paper extends the methodology to systems with a stochastic dependency between the individual hot spots. It addresses the general decision theoretic problems that arise when dealing with RBI of systems. The differences to inspection planning for individual hot spots are listed and discussed. Using a generic format for single hot spots, a consistent approach to the problem is proposed, based on the concept of Value of Information. Possible application of the methodology is outlined.