Thank you so much for your reply. In the two video toturals, I notice the boundary is applied in Y direction. Thus the "Crack opening direction" is seleced as Y (0,1,0). Thus the two video tuturals are desinged for mode 1.  

I have tried to downloade the docuemnt several times, but the document contens is empty:

Would let me know how I can let this docuement works?

I am really appreciate if you would let me know how I can do J integal for mix mode. Is that simpily change the crack opening direction vector? If the nodal displacement around crack is 1 in X and 10 in Y, then the crack opening diection should be (1,10,0) to compute the mix mode 1 and mode 2?


Thank you so much!