Abstract
The integrity of structural systems relative to fatigue and fracture can be ensured by a rational program which coordinates a design, inspection, and repair process to minimize life-cycle costs in the context of a reliability analysis which treats uncertainties in fatigue design factors and inspection performance. The features of the process are summarized, and a simple illustration is provided. Research needs relative to this problem, delineated herein, are principally those of developing reliability models of material behavior, obtaining the data to compute parameter values, and developing efficient computational methods for fatigue reliability and maintainability analysis of “large”-scale series and redundant structures.
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