I have a part in Catia where I have to define a local mesh over a region in Generative Structure Analysis. I've tried defining a second body on the part to apply a mesh to that, however the octree mesher doesn't recognize it as being a valid support. Is there a way to define a local mesh over a region on a part without having to define a local mesh just on a face or line? The part is large enough that selecting a smaller mesh size for the overall part is not feasible.
Essentially I have a complex part where I expect the stresses to change rapidly in one region (hence I want to define a local mesh there), however there isn't a line or face or "valid support" to define the mesh in that region. For the purposes of this design, I cannot simply define two parts and connect them with a "fastened" connection.