1 Reply Latest reply on Feb 2, 2018 5:35 PM by Ryan Dark

    Why the stress is so high at this low temperature?

    Marco Wu

      I have the temperature to be 25C

      Reference temperature at zero strain = 70C

      Material is 304 steel.

      I do not understand why the von Mises stress is close to the yield strength 2.068E8

       

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        • Re: Why the stress is so high at this low temperature?
          Ryan Dark

          Hi Marco,

          Is your temperature boundary condition applied to the entire body (a volume selection) or just the exterior faces.  If it is just the exterior faces then the temperature is only applied on those faces.  The interior volume would then be set, by default, to 0 Kelvin (as it cannot be set to a null value).  This would cause extreme stress results outside what you would normally expect.