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A platform for research: civil engineering, architecture and urbanism
Reliability assurance for fatigue crack growth by repeated in-service inspections
Abstract The effect of repeated in-service inspections on the reliability degradation due to fatigue crack growth is investigated based upon a stochastic fracture mechanics. The random loading stress and the random growth resistance are simultaneously taken into account in the stochastic crack growth model. A method is first presented for evaluating the failure probability under inspection plans with prespecified intervals, on the assumption that the component is exchanged when cracks are detected. The results are then numerically applied to investigate how the reliability of structures behaves under repeated ultrasonic inspections. It is clarified that inspection policy and the diffusive effect in the crack growth process significantly affect the behaviors of the reliability degradation.
Reliability assurance for fatigue crack growth by repeated in-service inspections
Abstract The effect of repeated in-service inspections on the reliability degradation due to fatigue crack growth is investigated based upon a stochastic fracture mechanics. The random loading stress and the random growth resistance are simultaneously taken into account in the stochastic crack growth model. A method is first presented for evaluating the failure probability under inspection plans with prespecified intervals, on the assumption that the component is exchanged when cracks are detected. The results are then numerically applied to investigate how the reliability of structures behaves under repeated ultrasonic inspections. It is clarified that inspection policy and the diffusive effect in the crack growth process significantly affect the behaviors of the reliability degradation.
Reliability assurance for fatigue crack growth by repeated in-service inspections
Tanaka, Takeyuki (author) / Tsurui, Akira (author)
Structural Safety ; 9 ; 305-314
1990-12-01
10 pages
Article (Journal)
Electronic Resource
English
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