|Document ID (ISN)||111547|
|Convention or series no.
||Baker M., Stanley I.
Health and Safety Executive
||Assessing and modelling the uncertainty in fatigue crack growth in structural steels
||HSE Books, P.O. Box 1999, Sudbury, Suffolk CO10 2WA, United Kingdom, 2008. viii, 97p. Illus. 49 ref.
||RR643.pdf [in English]
||The objective of this study was to improve the current methods of reliability assessment for structures, and in particular steel offshore structures approaching the end of their design lives. Work was carried out to investigate the variability in the fatigue crack growth of steels and the way in which the corresponding uncertainties could best be incorporated into the assessment process. This included the fatigue testing of specimens of specific grades of steel with the explicit aim of studying the variability in crack growth under different conditions. Findings are presented. The relatively large uncertainties associated with fatigue crack growth behaviour, even within relatively homogenous sets of specimens, means that the variance in the predicted fatigue life is relatively large. It has been shown, however, that the use of fatigue crack growth rate data from relatively early in the life of a particular structure can significantly reduce this uncertainty and improve the reliability predictions through the process of reliability updating.
||United Kingdom; materials testing; safety engineering; offshore oil extraction; metal fatigue; description of technique
||reliability; public OSH institutions; research; report
||E - Books, reports, proceedings
|Country / State or Province||United Kingdom|
||Mines and quarries
Safety organization and training
|Broad subject area(s)
||Fires, explosions and major hazards
Petroleum and natural gas industry