How to best combine loadcases containing analyses with different respective meshes, supports, and loads? Our customer wants to do a loadcase combination between two different analyses having different meshes (due to a slight geometry change), supports, and loads. When he tries combining the two loadcases concerned, he gets a warning that the loadcases were solved using different meshes and boundary conditions. He wants to know: 1. How the combination is done in ANSYS for such type of situations, to better understand the combined results and to interpret the results at the locations where the corresponding nodes in two models are not coincident. 2. The best method to combine such type of loadcases. Personally, I suppose that the best approach would be using the submodeling technique. I would like to have details on this method for the loadcase combination application, if applicable.