Optimal Strategies for Design, Inspection, and Repair of Fatigue-Sensitive Structural Systems Using Risk-Based Economics

by Paul H. Wirsching, Univ of Arizona, United States,
Yi Torng, Univ of Arizona, United States,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability


The fatigue reliability and maintainability process for a marine structure (caisson platform) is studied. Reliability analysis, performed by Monte Carlo, quantifies the improvement in reliability which can be realized by a program of periodic inspection and repair. Yet, when economic value analysis is performed for this structure, the optimal strategy is to design using a large safety margin and avoid an expensive maintenance program.

Subject Headings: Structural systems | Inspection | Rehabilitation | Fatigue (material) | Risk management | Economic factors | Structural safety | Structural analysis | Monaco | Europe

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