A 3-dimensional finite element steady state heat transfer and stress analysis was performed to predict the stresses due to temperature variations in the support structure of a pressure vessel with a platform support structure attached.

The figures below shows results of the steady state heat transfer and stress analysis. The temperature field between the hot vessel and cold support structure led to stresses at the interface between the two.

An evaluation of the thermal and pressure stresses predicted that all of the primary and secondary stresses, both general and localized, were within the ASME Section VIII, Division 2 Mandatory Appendix 4 allowable values.