Fatigue Failure Risk Assessment for a Maintained Stiffener-Frame Welded Structure with Multiple Site Cracks
作者： Wei Huang , N. Sridhar
DOI: 10.1142/S1758825116500241
关键词:
摘要: A probabilistic approach is proposed here for the failure risk assessment of a welded ship structure with respect to fatigue damage caused by multiple site cracks. The initiation and propagation cracks often occurs at weld toes while subjected alternating loading. To account interaction inherent uncertainties in crack growth process, model developed based on Paris law. probabilities are estimated using reliability analysis. Then, performed estimation. As service life structures usually very long, in-service maintenance activities locations critical actually necessary ensure integrity structures. associated can be updated through inspections repairs detection. effects inspection quality frequency investigated structural failure.
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