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K value calculation in Ansys
Fri, 2008-03-14 13:14 - Gagandeep Singh
I am trying to calculate K values for a double tip crack orientated at 45 deg in a rectangular plate in ansys.I am stuck with a strange problem. When i give the Kcal command it says the crack face is not parallel to the active x axis. But i have checked the cordinates of the keypoints that i have used to create the crack. The crack is perfectly symetric about the active cordinate system about the crack tip.Can somebody help me please.
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the crack face is not parallel to the currently active X axis
'the crack face is not parallel to the currently active X axis' - I am also facing same problem...
Some times, remeshing helps; but not always...
Is there anyone to help us?
Hi Gagan and Alam, Some
Hi Gagan and Alam,
Some points to check are,
1) the positive direction of x-axis of cracktip coordinate system should be in the direction of crack growth. I assume that you have created a local coordinate system near the crack tip. This is different from global coordinate system. And while calculating K you need to make sure that the crack tip coordinate system is active.
2) also, try to check the way you have defined the "path"for K calculation.
I hope this helps.
--Siva