Page 409 - Biaxial Multiaxial Fatigue and Fracture
P. 409
A Multiaxial Fatigue LTe Criterion for Non-Symme@ical and Non-Proportional Elasto-Plastic .._ 393
SONSINO'S CRKERW -- NCQNEL7ll
16'
T
E
E
E lo"
I
...
s
2
3
10"
10' 10' 10' 1 0' 1 o6 10' .- ._
Fatfaue life lcvclesl Experimental fatigue life N, [cycles]
10' 1 o3 1 0' 10" lo6 10'
Fafigue /ife [cyc/esJ Expenmenfa/ fatigue life N, [cyc/e.sl
Fig. 5. Comparison of experimental and calculated fatigue lives for Inconel 718: Sonsino-
Grubisic criterion (top), new criterion (bottom)
SONSINOSCRITERION -MILD STEEL
10' 1 o3 1 o4 1 o5 '1 0" 10'
Fafigue life [cycles] Experimental fatigue life N, [cycles]
(caption on next page . . .)
