Learning Forum

[Ji-Hyun Jeon]

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]

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