The use of inspection and monitoring reliability information in criticality and defect assessments of ship and offshore structures

Feargal Brennan, Bart De Leeuw

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

3 Citations (Scopus)

Abstract

This paper describes the use of inspection reliability information in fitness-for-service and criticality assessments for ship and offshore structures. Assessments of components that have never been inspected should assume a defect distribution from manufacturing quality assurance reports taking into account any propagation of damage that might have occurred. By understanding how to incorporate Probability of Detection (POD) and Probability of Sizing (POS) information with associated confidence measures into damage modelling, operators can appreciate the benefit of conducting inspections and the resulting implications for quantitative risk assessments particularly where no defects are found. The paper illustrates the use of POD and confidence levels for predicting remaining life due to corrosion and fatigue and also how to incorporate sizing statistical performance characteristics of the inspection system into remaining life assessments. In addition, the paper addresses the emerging trend towards monitoring with inspection and how operators and designers can benefit from future trends in structural health monitoring.

Original languageEnglish
Title of host publication2008 Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008
Pages921-925
Number of pages5
Volume2
DOIs
Publication statusPublished - 28 Feb 2009
Externally publishedYes
Event27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008 - Estoril, Portugal
Duration: 15 Jun 200820 Jun 2008
Conference number: 27

Conference

Conference27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008
Abbreviated titleOMAE2008
CountryPortugal
CityEstoril
Period15/06/0820/06/08

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Keywords

  • ships
  • offshore structures
  • reliability
  • inspections

Cite this

Brennan, F., & De Leeuw, B. (2009). The use of inspection and monitoring reliability information in criticality and defect assessments of ship and offshore structures. In 2008 Proceedings of the 27th International Conference on Offshore Mechanics and Arctic Engineering, OMAE 2008 (Vol. 2, pp. 921-925) https://doi.org/10.1115/OMAE2008-57934