[Gmsh] GMSH IGES? / Tetrahedrons?

[Christophe Geuzaine]

Brenda Ellen Make wrote:
> Hi,
> 
> I would like to output an IGES enclosed surface model and input it into 
> GMSH for meshing with 3D tetrahedrons, and also a triangle surfaces.
> When I tried to import a IGES, even the same IGES which can imports 
> successfully into Netgen(1), all I see are splines, and perhaps what 
> looks like a small crumpled surface.

Can you send your iges file?


> 
> Does GMSH require one specific IGES format for input?
> 
> ~
> 
> Also, having a student version of Rhino3D, I asked them to develop a 
> ..msh file format : )
> 
> Thank You for Reading,
> BrendaEM
> 
> Notes:
> 
> I'm trying to learn FEA on Impact and perhaps Calculix, but perhaps do 
> some experiments with Dophyn CFD, and it's hard to get the programs 
> talking to one another.
> I believe that Gmsh is a very important program for students because so 
> many programs can read its file format.
> 
> Netgen:
>    (1) I can load iges surfaces into Netgen 
>     I can't seem to mesh what I want Netgen because, at the overridden 
> coarsest settings the mesh is much to fine for my files.
> 
> Impact:
>     Impact can load Gmsh .msh files, but not ones from Netgen. The files 
> can be saved in Gmsh's .msh format, can loaded.
>     Have successfully FEA on surfaces.
>     As seen on the Impact list, changing these values in the script, or 
> modifying a material eliminated tearing:     FAILURE_STRESS = 4481367 
> YIELD_STRESS = 3309316
>     You can select multiple nodes by lassoing them, as not seen in the 
> tutorials.
> 
> OpenCAE:
>     Salome doesn't care for my hardware, and I have no 3D acceleration.
>     Would rather they provided a apt-get repository, than to recreate 
> the wheel.
>     One person got Salome working for Ubuntu. (Haven't tried it yet.)
>         
> http://www.salome-platform.org/forum/?groupid=10&forumid=9&thread=1990
>     Don't hold your breath for the Windows version of Solome.
> 
> 
> 
> 
> 
> _______________________________________________
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> gmsh at geuz.org
> http://www.geuz.org/mailman/listinfo/gmsh
> 
> 


-- 
Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine