This is a typical error in ANSYS® Mechanical that faced while doing mechanical analyses. The solution to this problem is very basic. Here, we explain the solution steps of ‘a internal solution magnitude limit was exceeded’ error in ANSYS Mechanical.
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As you see above, this error appears as an ‘Error’ and ‘Warning’ message in ANSYS® Mechanical. And the analysis is not solved in the ‘Solution’ section as shown in the green box above.
First of all, you need to make ‘Solver Pivot Checking’ from ‘Program Controlled’ to ‘Off’ from ‘Analysis Settings’ in ANSYS® Mechanical. This option will force your analyses to be done even there is an error about the analysis itself.
Then right-click on the analysis system which is ‘Static Structural’ here, and add a ‘Command(APDL)’ list.
Into that Command(APDL), type ‘ncnv, ,le30’ as shown by green arrow above. Delete all the generated data by right clicking on ‘Solution’. Then solve the analysis again.
These options will force you to solve your analysis even it is very wrong. But you can see the problematic section in your analysis. And you need to check the problematic section and change or adjust your connections to solve it. After the adjustments, solve your analyses again. You can retry this up to obtain a logical solution from your analysis.
At last, you can open the ‘Solver Pivot Checking’ to ‘Program Controlled’ mode to see, whether there is a problem in your analyses again.
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NOTE: All the screenshots and images are used in education and informative purposes. Images used courtesy of ANSYS, Inc.