Health and Safety
Executive / Commission
Research Reports:
Offshore Technology
Fatigue is of significant concern for load bearing offshore
structures in the North Sea. The present tools for predicting fatigue
life or crack growth imply scattered estimates.There is a need for
more reliable fatigue life and defect assessment procedure for the
most frequent failure observed. The availability of a database of
inspection data to correlate actual with predicted performance will
assist the development of fatigue assessment procedures representing
the observed growth. Describes the in-service observation of the data
collected; calculation of the reliability estimate of observed
events; quantitive comparison of the theoretical predications and
in-service observations; the concept of adjustment factors;
consequences of the results. Makes recommendations for further
work.
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