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General Mechanical

General Mechanical

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  3. Unrealistic Deformation Output from thermal expansion

Unrealistic Deformation Output from thermal expansion

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    • July 23, 2026 at 5:19 pm
      wellin42
      Subscriber

      Hello! I am pretty new to Ansys and I'm trying to do a structural analysis of a two part assembly under thermal stress. However, the resulting displacement after a transient thermal analysis and a static structural analysis is REALLY LARGE, and I can't seem to figure out why this is happening. 

      The assembly is two parts, with one being made of very thin nickel and the other being made of stainless steel, and I had to modify both materials in Engineering data so that they had the proper elasticity and CTE. I have attatched pictures of the assembly with and without the deformation showing, as well as pictures of some other details. 

         

      Thank you for your help!

    • July 23, 2026 at 5:30 pm
      wellin42
      Subscriber

      As it turns out, I forgot a decimal in my CTE input. Don't forget to check your values :(

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