,what I understood is that the faces of each body [both bodies having a different material] where the shared topology is created, will have equal averaged stresses if we turn ON the Average Across Bodies option, instead of turning it OFF. Is it correct?nIf it is, then consider the picture below:nwill the stresses just on the left of the shared topology (within the steel material) and just on the right of shared topology (within the Aluminum material) will also be affected by the averaged stress that we have computed on the shared topology face by turning Average Across Bodies option ON?nWhat about discontinuities occurring due to sudden geometric changes? Like having two bodies [made of same material] sharing topology, but have a sudden change in cross section from one body to the other.n