General Mechanical

General Mechanical

Topics related to Mechanical Enterprise, Motion, Additive Print and more.

Thermal condition in Static structural

    • Ji-Hyun Jeon
      Subscriber

      When using a 'thermal condition' in static structural analysis, isn't radiation considered? If not, could the resulting stresses be inaccurate due to the neglect of radiative heat transfer?

    • Erik Kostson
      Ansys Employee

      Hi
      Static structural has only UX, UY, UZ degrees of freedom and not temperatures.
      Thermal condition imposes temperatures (temp.) as a load/boundary condition that then cause thermal strains (alpha * DT). Now if the temp. is not the same everywhere we can do a thermal analysis to find out what it is.

      So if one wants we can do a detailed thermal analysis including radiation, to find out the temperature distribution, and then transfer these temperatures to the static system for a thermal stress analysis.

      See here on how to do this (thermal - > structural analysis):
      https://www.youtube.com/watch?v=yh346v-tsFo

      All the best
      Erik

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