Page 92 - Biaxial Multiaxial Fatigue and Fracture

Micm-Crack Growth Behavior in Weldments of a Nickel-Base Superalloy Under ... 77

I 1
1 oo 10' 1 o2
1 0 - ~ ~ * * 1 1 ~ I I cl,r*,l I 8 l l l * e l l
AJf (N/m)
Cyclic J-integral range based on Mises' strain
(a) J-integral range based on von Mises' strain

- 5 1
lo 100 10' 102
AJf (N/m)
Cyclic J-integral range based on principal strain

(b) J-integral range based on the principal strain

Fig. 19. Relationship between crack growth rate and the cyclic J-integral range.