General Mechanical

General Mechanical

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Request for Assistance with ANSYS Transient Structural Errors

    • Aaditya Naik

      The specific errors I am encountering during the simulation process are as follows:

      "The solver engine was unable to converge on a solution for the nonlinear problem as constrained. Please see the Troubleshooting section of the Help System for more information."

      "The unconverged solution (identified as Substep 999999) is output for analysis debug purposes. Results at this time should not be used for any other purpose."

      "Element 47483 located in Body 'cage[2]' (and maybe other elements) has become highly distorted. You may select the offending object and/or geometry via RMB on this warning in the Messages window. Excessive distortion of elements is usually a symptom indicating the need for corrective action elsewhere. Try incrementing the load more slowly (increase the number of substeps or decrease the time step size). You may need to improve your mesh to obtain elements with better aspect ratios. Also consider the behavior of materials, contact pairs, and/or constraint equations. If this message appears in the first iteration of the first substep, be sure to perform element shape checking. Named Selections for the offending element can be created via the Identify Element Violations property on the Solution Information Object."

    • Akshay Maniyar
      Ansys Employee

      Hi Aaditya,

      Looks like your model is not converging because of highly distorted elements. Do you have hyperelastic material used in your model? If yes, then please check the below video for avoiding distortion issue in such cases.

      Handling Element Distortion Errors in Hyperelastic Material Models Using Ansys Mechanical — Lesson 3 - YouTube


      Akshay Maniyar

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