MatSci-SAMhttps://w3id.org/matsci-sam/vocabulary/mrc/fatigue/definitions/2/revisions/1The progressive and localized structural damage that occurs when a material is subjected to cyclic or fluctuating stresses, typically leading to the formation and propagation of cracks even when the peak stress remains below the ultimate tensile strength of the material.
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Editor not recordedJul 21, 2026
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This should state that fatigue failure occurs below the material's yield strength, and mention crack initiation, propagation, and final fracture as the three stages.
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The turbine blade developed a microscopic surface fissure due to fatigue, which eventually propagated through the airfoil until the residual thickness reached a critical limit.
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