Indicators for Assessment and Inspection Planning

Publication FS00

Authors

Michael H. Faber and John D. Sørensen

Abstract

Based on an idea introduced by Benjamin and Cornell and previous works by the authors it is demonstrated how condition indicators may be formulated for the general purpose of quality control and for assessment and inspection planning in particular. The formulation facilitates quality control based on sampling of indirect information about the condition of the considered components. This allows for a Bayesian formulation of the indicators whereby the experience and expertise of the inspection personnel may fully utilized and consistently updated as frequentistic information is collected. The approach is illustrated on an example considering a concrete structure subject to corrosion. It is shown how half-cell potential measurements may be utilized to update the probability of excessive repair after 50 years.

Published in/by

Proceedings ESRA Workshop on Reliability and Risk Based Inspection Planning, Zürich, December 14-15, 2000.