Structural integrity assessment of metallic components under multiaxial fatigue: the C–S criterion and its evolution

The present paper discusses the evolution of a critical plane-based multiaxial high-cycle fatigue criterion, known as Carpinteri–Spagnoli criterion. By proposing appropriate changes to the original formulation, the extended versions of the aforementioned criterion are able to assess smooth and notched metallic structural components subjected to different fatigue loading conditions, such as multiaxial in-phase and out-of-phase synchronous cyclic loading, asynchronous cyclic loading and random loading. The results obtained through this criterion are compared with some experimental results related to relevant data reported in the literature.

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