Abstract
A new criterion for multiaxial high-cycle fatigue limit is proposed using two parameters: one governing crack initiation and the other governing initial crack growth. The axial fatigue limit and the true fracture strength are used as the material properties required in estimations. The prediction accuracies using conventional criteria and the proposed criterion were compared using known data about fatigue limits under different loading conditions. The comparison was made for the effects of phase difference, mean stress, and the combination of phase difference and mean stress. The estimation error of the proposed criterion was approximately 10%, which is better than that of the other criteria used for comparison.
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