Page 174 - Biaxial Multiaxial Fatigue and Fracture

0.9 *

Fatigue Limit of Ductile Metals Under Multiaxial Loading 159

1.4
zxya=o. 5axa
1.3
1.2 RFRq-1 triavgle
1.1
1 +- sinus

0.8
trapez I
0.7
nc
u.u I I
0" 30" 60" 90"
phaseshift Zxv

Fig. 11. Effect of wave forms and phase shift between an alternating normal stress and an
alternating shear stress, test results from [28]

Fig. 12. Effect of the wave form and phase shift between two pulsating normal stresses, test
results from [ 1 11