Unkown error in ansys

dioneAssanedioneAssane Member Posts: 1

Hello, 

I have a problem with my last step in ANSYS - Solution (Solve). Geometry, Mesh is fine, but I still getting error: 

   

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

Association: "Project>Model>Static Structural>Solution"

I already tried everything.. 

Help me please. 

Comments

  • peteroznewmanpeteroznewman Posts: 11,378Member
    edited March 29

    @dioneAssane

    In Workbench, click on the Solution Information folder. The graphics screen will be replaced the the contents of the Solve.out file as long as the Solution Output is selected.

    Search (ctrl-F) the text for the word Error. Reply with what the text before and after that word show.

  • dioneAssanedioneAssane Posts: 7Member

    Hello Peter,

    Thanks for the answer. If I look at the file.error here is the message I see:

    *** ERROR ***              CP =    2.312  TIME= 03:49:12

     Thermal strain in element 3802 with material 4 has caused the element  

     to invert. Please check the thermal expansion definition and the    

     temperature change.                           


     *** ERROR ***              CP =    2.312  TIME= 03:49:12

     Thermal strain in element 5389 with material 4 has caused the element  

     to invert. Please check the thermal expansion definition and the    

     temperature change.                           


     *** ERROR ***              CP =    2.312  TIME= 03:49:12

     Thermal strain in element 3802 with material 4 has caused the element  

     to invert. Please check the thermal expansion definition and the    

     temperature change.                           


     *** ERROR ***              CP =    2.312  TIME= 03:49:12

     Thermal strain in element 5389 with material 4 has caused the element  

     to invert. Please check the thermal expansion definition and the    

     temperature change.                           

  • dioneAssanedioneAssane Posts: 7Member

    The matter is if I put the environment temperature and the thermal condition to the same value it works but with results=0 and if I set those two values different it fail. and gives that error message : An unknown error occurred during the resolve operation. Check the resolution output in the Solution object for possible causes.

  • mrifemrife PHLPosts: 136Forum Coordinator
    edited March 31

    @dioneAssane Ansys employees are not allowed to download and review models. So please post pictures in-line with text instead. So, let's start with the simplest mistake that has the largest effect. Double check the material definitions. Perhaps post a screen shot of material '4'. It is easy to accidentally miss the "-" in the exponent of a thermal expansion coefficient i.e. entering something like 1.7E6 instead of 1.7E-6.

    Mike

  • dioneAssanedioneAssane Posts: 7Member

    Hello thanks for the answer and sorry i did not know.

    here is the list of my material and I think the material 4 is acier standar.

    here is the datails for that material

  • dioneAssanedioneAssane Posts: 7Member

    no loguer having that error message when changed the material. But know got this: The preconditioned conjugate gradient solver failed with an error code of 1. Please check for an insufficiently constrained model. Switching to the sparse direct solver may allow this nonlinear analysis to continue beyond this point.  

  • peteroznewmanpeteroznewman Posts: 11,378Member

    @dioneAssane

    Under Analysis Settings set the Solver to Direct.

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