Predictive Modeling of Structure Service Life
This article discusses corrosion fatigue, its effects on the damage tolerance of aircraft, and its predictive modeling. A conceptual framework is presented that incorporates two distinctive cyclic-based life-prediction philosophies and expands them both to include the time domain in order to consider the effects of corrosion. These philosophies include crack initiation used for safe-life design and crack growth used for damage tolerance. The article presents the methodology for computing the effects of real-time age degradation on an aircraft structure for two different corrosion types: crevice and pitting corrosion. It describes the rationale and techniques needed to apply the age-based structural integrity processes to in-service structures in order to realize the benefits throughout the full structural life cycle.
Craig L. Brooks, Kyle T. Honeycutt, Thomas B. Mills, 2003. "Predictive Modeling of Structure Service Life", Corrosion: Fundamentals, Testing, and Protection, Stephen D. Cramer, Bernard S. Covino, Jr.
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