3 Replies Latest reply on Jun 13, 2014 1:02 AM by Jared Conway

    meshing problem

    Mark Scholten

      Hi everyone,

       

      some time ago i did a static analysis of a doubly symmetric structure. I used symmetry fixture and only analysed a quarter of the whole structure.

       

      now i have been asked to do an analysis of the same structure under a load that is such that i cannot use symmetry anymore. so i added the remaining 3/4 of the structure, but now it will not mesh anymore. not even at tiny values for mesh width. i have checked for interferences, but there are none.

       

      anyone any ideas? thanks!

      Mark

        • Re: meshing problem
          Mark Kaiser

          I think we'll all be guessing unless you give us at least a screen shot, and note where it isn't meshing.

            • Re: meshing problem
              Mark Scholten

              Hi Mark,

               

              i am not allowed for this project to post screenshots, but i can tell you that it is a single part. only one body present. unfortunately, the software cannot give any clues as to which part isn't meshing correctly this way.

               

              it resulted from a procedure i have followed a couple of times now without problems. i do this because the designs are made in such a way that they are unsuitable for FEA: all plates are designed edge-to-edge (for welding) so no actual connection is recognized. i transform these assemblies to multibody parts and use lofts to fill up the gaps.

               

              as mentioned before: one quarter of the structure meshed just fine, but mirrored twice it keeps failing. I placed it in an assembly to check for interference, but none present.

               

              I hope you can point me in the right direction...

                • Re: meshing problem
                  Jared Conway

                  you have a part in an asy or a body in a part?

                  either way if one part meshes and the rest don't and they are coincident (not overlapping) the mesher can't mesh the interface between them

                  try incompatible mesh

                  or mirror and then merge them together

                  i'm also assuming this is a solid part, meaning no problems with CTRLQ with VOR and also no imported errors with no features in the part...etc