Hi David,
thanks for the fast reply. It is what I would like to have connect the
faces if they share an edge. Yes the provided option seams to do the
trick.
-string "Geometry.OCCSewFaces=1;"
It worked on the simple provided part compound_of_faces.step and on
one with 10 faces beam-10faces.step. With bothe the FEA worked out
very well :-) On a more sophisticated part mechanical-part.step it
seam to work out too but I get non positive jacobian during FEA, but
that seams to be another part of the story.
Downloadlink is still:
https://cloud.woelkli.com/public.php?service=files&t=1cfd13febed7694726b902cdb36476d4
I need to test on more examples. I will report back.
kind regards bernd
Zitat von David Colignon <david.colig...@ulg.ac.be>:
Hi Bernd,
can you try with adding the
-string "Geometry.OCCSewFaces=1;"
option ?
This should work with relatively simple geometries, i.e. faces
sharing a common line.
Regards,
Dave
--
David Colignon, Ph.D.
1er logisticien de recherche
Université de Liège
ACE - Applied & Computational Electromagnetics
Sart-Tilman B28
10, Grande Traverse
4000 Liège - BELGIQUE
Tél: +32 (0)4 366 37 32
http://www.ulg.ac.be/nic4
On 21/09/15 19:25, Bernd Hahnebach wrote:
Hi there,
This is my first post to the mailing list so I may introduce myself
first. The "identifier" given to
me by my parents is Bernd and this corresponds to what most people
call myself. The bred to feed
myself an my familiy I earn in an engineering office near Zuerich
in Switzerland. I'm structural
engineer in the building industry. In my spare time I develop on
the FEM Workbench and on the Arch
Workbench of the parametric open source cad plattform FreeCAD. This
is why I'm gone write to this list.
FreeCAD uses for internal parametric surface and solid meshing
netgen. AFAIK due to licence
incompatibility between FreeCAD and GMSH it has never been an
option to use GMSH instead. But there
exists a FreeCAD macro which uses the GMSH installed on ones
computer for meshing. Most users mainly
use this GMSH macro for meshing their models including myself. The
macro exports a *.step meshes
with GMSH and imports the *.unv mesh back into FreeCAD. Babbled
enought,the important part of the
post ...
I run into trouble with meshing compunds of faces. The faces where
not connected to each other and
thus a Finite Element Analysis will fail to work without manual
connection off all the faces of the
compund. As a example a very simple compund of just two faces is taken.
mesh command:
gmsh compound_of_faces.step -3 -format unv -o compound_of_faces.unv
-algo netgen -clmax 100,00
-order 2 -optimize
gmsh --version
2.8.5
on Debian Jesie
I was wondering if it is possible to tell GMSH to mesh a connected
Surface Mesh of a compund of faces?
The files could be downloaded here:
https://cloud.woelkli.com/public.php?service=files&t=1cfd13febed7694726b902cdb36476d4
Kind Regards and thanks to all people who have ever contributed to
GMSH development.
Bernd
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