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Using Structural results as a Pre Load for a thermal analysis

This may sounds backwards but I'm attempting to create an analysis to show the relaxation/change in preloaded joints. I have a fastener preloaded in a structural analysis assumed to be at ambient temperature. I then want to run a thermal analysis using that as a pre condition to show, based on the material temperatures, how that preload changes at a specific temperature. I haven't been able to figure out how to make this work. I see I can use thermal analysis as a pre load to a structural analysis, but I can see how to do the reverse.

I'm using NX10 with NX Nastran or MSC Nastran.