A number of tests have been conducted on a 1 percent Cr-Mo-V steel under combined cyclic axial and torsional loads with various phase relationships. It is shown that endurance and the direction of crack growth depend on the strains acting on the planes of maximum shear. Fatigue life is reduced by out-of-phase loading conditions.
No takes yet. Share an insight, caveat, or question.
Kanazawa et al. (1977) studied this question.