General Mechanical

General Mechanical

An unknown error occured during solution

    • Mn65


      I'm modeling a 3D single lap joint with a pre-crack mesh to evaluate the energy release rate uder different applied displacement. This erroe appears:

      "An unknown error occurred during solution.  Check the Solver Output on the Solution Information object for possible causes".

      Could you please check the following swntences from olver output to give me your idea about 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."


      I have also these following questions:

      1- Is the coordinate system of the pre-mesh crcak correct?

      2- What is the main reason of this error?

      Thank you

    • Nanda Veralla
      Ansys Employee


      Hello Mn65,

      Unfortunately, there is no standard reason for the occurance of this kind of error. It could depend on lot of factors. Some common reasons could be Lack of Memory, Graphics card, some bad inputs in setup, some sort of corruption in model.

      But these errors are observed rarely and in case you are encountering those more often, I would suggest:
      Clear the Temp folder: Type %temp% in windows taskbar and delete the contents of folder that opens up.
      Rename the appdata folder: Close all open WB sessions. Type %appdata% in windows taskbar, this would open up Appdata –> Roaming folder. Go to folder named ANSYS and rename the one against the version you are using to ***.old. For example, rename vMn65 to vMn65.old. Open up a new WB session now. Make sure that there is always enough memory available (RAM and Hard drive) to solve the model.



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    • Ashish Khemka
      Ansys Employee


      Please see if the following posts help:

      gpu acceleration problem (

      Co-ordinate system of crack (



      Ashish Khemka

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