Implications of Inspection Updating on System Fatigue Reliability of Offshore Structures

[+] Author and Article Information
Torgeir Moan, Ruxin Song

Department of Marine Structures, Norwegian University of Science and Technology, 7034 Trondheim, Norway

J. Offshore Mech. Arct. Eng 122(3), 173-180 (Apr 14, 2000) (8 pages) doi:10.1115/1.1286601 History: Received March 02, 2000; Revised April 14, 2000
Copyright © 2000 by ASME
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Grahic Jump Location
Basic parametric sensitivity studies at t=4 yr—(a) sensitivity measures of mean values, (b) sensitivity measures of standard deviation
Grahic Jump Location
Reliability of a single joint based on different number of inspection events with no crack detection
Grahic Jump Location
Reliability of a single component updated when no crack is detected
Grahic Jump Location
Reliability of a single joint updated through no crack detection with different correlation between Mi and IEj (cc denotes correlation coefficient)
Grahic Jump Location
Reliability of a single joint updated through crack detected and measured at t=4 yr (cc denotes correlation coefficient)
Grahic Jump Location
Reliability of a single joint updated through repeated inspections with no crack detection
Grahic Jump Location
Reliability updating of a series system of five joints with no crack detection (cc denotes correlation coefficient)
Grahic Jump Location
Reliability of a series system with all five joints updated with one joint inspected based on two updating approaches
Grahic Jump Location
Reliability of a series sub-system of five uninspected joints set updated based on inspection of one to five other joints



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