Article ID Journal Published Year Pages File Type
808238 Theoretical and Applied Fracture Mechanics 2008 16 Pages PDF
Abstract

The fundamental difference between the cyclic yield stress and the fatigue limit is scale. The basic rate of slip mismatch towards a saturated condition, representing polycrystalline behaviour, is a material property embedded into the grain size distribution. Deviations from its basic rate will depend on the shape of the crack and the selected crack path. This work concludes that during the first loading cycle, and for stresses equal and above the fatigue limit, the surface will always been deformed plastically.

Related Topics
Physical Sciences and Engineering Engineering Mechanical Engineering
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