Page 119 - Biaxial Multiaxial Fatigue and Fracture
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104 L. SUSUEL AND N. PETRONE
r4R,t(Ps’90%))/zA,Ret(PS=lO%). Scatter ratio of reference shear stress
amplitude for 90% and 10% probabilities of survival.
Angles which define the position of a generic plane A
Angles which define the initiation plane
Generic plane
Stress ratio related to the initiation plane
Fully reversed axial fatigue limit
Maximum stress normal to the initiation plane
Nominal axial stress amplitude
Nominal mean stress amplitude
Shear stress amplitude on the plane of the maximum shear stress
amplitude
Fatigue strength corresponding to NRef cycles
Fully reversed torsional fatigue limit
Nominal shear stress amplitude
Nominal mean shear stress
