volume meshing from IGES geom

hi, i'm trying to generate a volume mesh (with Salome 3.2.1) of the crank.igs sample geometry.
the geometry is imported correctly, but I can't create a volume out of the imported surfaces.
i'm following these steps:
1 - new geometry study
2 - import iges
3 - explode faces
4 - build shell out of the faces
5 - build volume out of the shell

this last step fails because salome doesn't let me select the shell.
as a result, when i go to the meshing environment i can only produce surface meshes.

Can anyone tell me what is wrong with my procedure or with the iges file?



Thanks
Andrea

Hi,

your procedure is correct, but it seams that during the Iges export in your CAD system or import in Salome, some errors have been introduced (this happens quite often in all CAD data transfer). To solve this, try to stitch the faces / repair the geometry with the GEOM > Repair tools like Sewing (sewing faces), Free Edges (display free edges), Free Faces, Automatic Repair.

Also if you want to transfer volumes, it is usually better to use STEP format (IGES only supports faces.. closes faces being usually interpreted as solids when imported, but this is not always failsafe..)