Abstract
AbstractAn energy‐like approach is introduced for correlation of biaxial fatigue. The approach is motivated by the elastic‐plastic δJ‐integral which has previously been successfully applied to correlate uniaxial fatigue microcrack propagation. In addition, the most salient aspects of critical plane theories are included to reflect the driving force for microcracks in Stage I shear‐dominated fatigue growth. Comparisons are made with some recent critical plane theories on the basis of generic completely reversed fatigue life behavior and for specific Case A and Case B biaxial loadings of Inconel 718 and 1045 steel.
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