Hi.
I have been working on shell model which was prepared outside Salome. During meshing I’m getting double nodes and double elements in areas where shell meet. I’d like to have it merged before meshing. Do you know how to do it? Nothing I tried actually helped. Please advise.
post the geometry. I would say (without having the geometry difficult to say) glue faces will solve the issue.
geometry, as requested.
coq3d.STEP (293.6 KB)
yup as expected. you need to use glue faces on the geometry and mesh the result. you will not have any double node or double edge.
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…so simple… so difficult when you don’t know where to look…
THANK YOU 
I’m having problem gluing faces. After gluing some of the free edges disappear, some stay. I’ve been changing tools, trying to glue edges or sew. Mothing actually gives required results. The model with free edges:
And after “Glue” tool:
Automatic gluing results in absorbing some of the edges. The ones I marked with arrows should also be absorbed:
How to solve the problem? When I leave the free borders there are obviously non-conforming meshes on perpendicular faces. I was playing with SolidWorks export settings. I checked all the possibilities, but the result was always the same. Please help.
I imported IGES instead of STEP. Gluing faces gives nothing. Gluing edges although detecting all the edges that should be glued, the result is the same, as after importing the model:
After gluing the result is the same as in case of STEP file:
You are doing surface meshing. You should not use glue faces but glue edges. Glue faces is when doing hex meshing.
glue edges and glue faces and sew gives the same result show above. Any hints? I played also with the tolerance on glue edges, but does nothing in this particular example
Pity that I can’t export from SolidWorks to BREP. Maybe then geometry would be recognized correctly. I also noticed when I export solid + shell and import it to Salome then the solid component is not recognized as solid, but as shell.
Well, it seems that sewing edges in Shaper doesn’t work at all on my geometry. In Geom module I have some unwanted free edges after gluing or sewing edges. So it seems that I can’t work with imported file… I’m trying to find a solution before I’ll have to work with a bigger project. Any ideas?
Hi,
have you tried Partition instead of Glue edges? It will compute intersections between your faces and create share edges to have a conformal mesh.
Best regards,
Christophe
I don’t understand. It’s an endplate perpendicular to beam made of shells. There’s an edge underneath, it’s already partitioned.
your mesh issue typically comes from non-connected faces. Either call Partition (eventually with fuzzy parameter if your shapes are not exactly at the same place) or Repair>Sewing with a tolerance (tick Allow non-manifold for your case).
Allow non-manifold solved the problem. Thank you Chrostophe!
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