I´m currently running a simulation where a Double Cantiliver Beam with a pre-crack is being fractured in a Mode I Fracture. I have a pre-meshed crack and I´m using the SMART Crack Growth feature on a 3D Model. 80% of the times I get this error:
An unexpected error ( SIG$SEGV ) has occurred... ANSYS internal data
has been corrupted. ANSYS is unable to recover and will terminate.
Previously saved files are unaffected. Please send the data leading
to this operation to your technical support provider, as this will
allow ANSYS, Inc to improve the program
It doesn´t follow any pattern, sometimes it´s at the substep 41 out of 75 or at 14 out 90 (for example). I´ve tried to reduce the number of nodes, the number of contours or play with the number of substeps I´m using. Also, depending on the number of subteps, the length of my cracks changes quite a bit (given the overall length of the beam, which is 110 mm). Here is a graph showing Length VS SIFS. They have all been done with 6 contours except for one; you can see a clear tendency but nothing too conclusive. I´ve done a real life experiment of the case I´m studying and It breaks all the way up until the end.