Hi everyone!
How we can calculate the stress intensity factor (KI and KII) in numerical software such as FLAC, UDEC or any software except Abacus (I mean Integral J)?
There are some equations for determining KI and KII based on stress in crack tip, but it cannot be calculate the KI and KII because of teta angle in these equations. Does any relationship between KI and KII based on stress in crack tip (for inclined crack)?
Thanks in advance for answering.
Hello
I refer you to master's thesis of Mr. Salari in Mining Department of Yazd University .
Thanks Dr. Bafghi
Unfortunately I don't access to this thesis. How I can access it?
Hi, I am learning to calculate SIF now, have you calculated successfully with numerical method?
Hi,
It can be calculate the SIF by using these software such as FLAC, UDEC, and etc. But the best and the most accurate method is "Integral J" which can be obtained from Abaqus software.
Thanks a lot for your answer, do you mean I can put in the stress and displacement state of the problem domain, then abaqus can calculate the SIF itself with the J integral? BTW, do you know the formula for Interaction J integral for calculating SIF, because I do not know how to calculate the partial derivation of u2 with respect to x1. It will be infinite in some situations. Thanks again for your help.
Abaqus has a special element for crack modeling. The formula is mentioned in the manual for calculating SIF based on integral J.
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