The Effect of Repeated Inspections on the Reliability Degradation Due to Fatigue Crack Growth

by Akira Tsurui, Kyoto Univ, Japan,
Akira Sako, Kyoto Univ, Japan,
Taisei Isobe, Kyoto Univ, Japan,
Takeyuki Tanaka, Kyoto Univ, Japan,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability


The effect of repeated in-service inspections on the reliability degradation due to fatigue crack growth is investigated based upon a stochastic fracture mechanics. A method to evaluate the failure probability under repeated inspections is first discussed on the assumption that the component is exchanged when cracks are detected. The results are then applied to investigate how the reliability of structures behaves under repeated ultrasonic inspections.

Subject Headings: Inspection | Chemical degradation | Fatigue (material) | Cracking | Structural reliability | Materials processing | Fatigue tests | Material tests

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