General Mechanical

General Mechanical

“An unknown error occurred during solution” when using structural

    • GLP28
      Subscriber

      Hello,


      Basically, I get this error when trying to run a solution in structural

      According to the solver output, I got the following problems:


      *** ERROR ***      CP =      0.984  TIME= 20:46:17

       Isotropic material 9 has a value of Poisson's ratio of 3 which must be 

       greater than -1.0 and less than 0.5 and is therefore not valid for     

       isotropic materials.                                                   


       *** ERROR ***              CP =      0.984  TIME= 20:46:17

       Isotropic material 6 has a value of Poisson's ratio of 290000 which    

       must be greater than -1.0 and less than 0.5 and is therefore not valid 

       for isotropic materials.                                               


       *** ERROR ***           CP =      0.984  TIME= 20:46:17

       Isotropic material 5 has a value of Poisson's ratio of 290000 which    

       must be greater than -1.0 and less than 0.5 and is therefore not valid 

       for isotropic materials.                                               


       *** ERROR ***              CP =      0.984  TIME= 20:46:17

       Isotropic material 1 has a value of Poisson's ratio of 3 which must be 

       greater than -1.0 and less than 0.5 and is therefore not valid for     

       isotropic materials.                                                   


       *** ERROR ***             CP =      0.984  TIME= 20:46:17

       Isotropic material 7 has a value of Poisson's ratio of 290000 which    

       must be greater than -1.0 and less than 0.5 and is therefore not valid 

       for isotropic materials.                                               


       *** ERROR ***           CP =      0.984  TIME= 20:46:17

       Isotropic material 4 has a value of Poisson's ratio of 290000 which    

       must be greater than -1.0 and less than 0.5 and is therefore not valid 

       for isotropic materials.                                               


       *** ERROR ***         CP =      0.984  TIME= 20:46:17

       Isotropic material 8 has a value of Poisson's ratio of 290000 which    

       must be greater than -1.0 and less than 0.5 and is therefore not valid 

       for isotropic materials.                                               


       *** ERROR ***       CP =      0.984  TIME= 20:46:17

       Isotropic material 3 has a value of Poisson's ratio of 3 which must be 

       greater than -1.0 and less than 0.5 and is therefore not valid for     

       isotropic materials.                                                   

       *** ERROR ***   CP =      0.984  TIME= 20:46:17

       Isotropic material 2 has a value of Poisson's ratio of 290000 which    

       must be greater than -1.0 and less than 0.5 and is therefore not valid 

       for isotropic materials.                                               

       *** ERROR ***   CP =      1.109  TIME= 20:46:17

       The step data was checked and there were errors found.                 


      From what I understood, the materials I imported from SW have impossible Poisson Ratio values, however I set them as 0.29, and not as 290000 as Ansys reported. Any solutions?

    • peteroznewman
      Subscriber
      On your computer, what is the regional setting for the decimal separator, is it Period, which is used in the USA or is it Comma, which is used in some EU countries? If you use a Comma for the decimal separator, try changing it to Period.
      What version of ANSYS and SW are you using, maybe this bug was fixed in a newer version of ANSYS/SW.
      Regardless of that, you will have to manually edit the materials in ANSYS Engineering Data after import and check each value carefully, making corrections as needed.
    • GLP28
      Subscriber
      I tried to change the decimal point on Windows and it didn't work

      However, I managed to fix it by changing the material properties in Engineering Data manually

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