Page 77 - Biaxial Multiaxial Fatigue and Fracture

62 E LABESSE-JIED ET AL.

D stress state tensor

equivalent uniaxial stress amplitude according to one multiaxial
criterion
fatigue strength coefficient
hydrostatic pressure
yield stress
cyclic yield stress coefficient
completely reversed (R=- 1) tensile fatigue strength
mean shear stress over one cycle

shear stress
fatigue strength coefficient
alternate shear stress
completely reversed (R=-1) torsion fatigue strength