mjmiddle
Ansys Employee

There is an "average across bodies" option on element nodal results:

and as an option at "File > Options > Results":

But these options will only work on shared nodes across bodies. See heading "Average Across Bodies: Using the Feature" in help page:

https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v242/en/wb_sim/ds_Unaveraged_Results.html%23ds_ave_across_bodies

This means sharing topology in SpaceClaim, Discovery, DesignModeler, or merging nodes in Mechanical at the interface using a feature under the "Mesh Edit" branch in the Outline.