Thanks for the response, Dr. Zenker. So it doesn't sound like there is a good way to do what I want currently?
Drew On Tue, Oct 7, 2014 at 4:14 AM, Zenker, Dr. Matthias < [email protected]> wrote: > Hi, > > > > AFAIK in Elmer you cannot assign a material to a surface in a 3D > simulation, so you need those very flat volumes. > > There is a 3D meshing algorithm in gmsh (MMG3D) which in principle allows > anisotropic mesh width. I have not succeeded in the past to get it working > for a similar problem, as it was not available for volumes with internal > boundaries. See the following post from the mailing list: > http://www.geuz.org/pipermail/gmsh/2013/008379.html. This is a year ago, > however, and things might have evolved since then. > > > > @Christophe: Have they…? ;) > > > > HTH, > > > > Matthias > > > > *Von:* Drew D [mailto:[email protected]] > *Gesendet:* Montag, 6. Oktober 2014 14:52 > *An:* Christophe Geuzaine > *Cc:* [email protected] > *Betreff:* Re: [Gmsh] Meshing stackup with thin & thick layers > > > > Christophe, > > > > Thanks for the response. Don't I need to treat them as volumes so that I > can assign them different materials in my solver? I'm using Elmer, btw. > > > > Drew > > > > On Mon, Oct 6, 2014 at 4:16 AM, Christophe Geuzaine <[email protected]> > wrote: > > > On 01 Oct 2014, at 22:23, Drew D <[email protected]> wrote: > > > I have a composite stackup with alternating thin & thick layers. The > thick ones are are rougly 10x the thickness of the thin ones, and the > aspect ratio is on the order of 100:1. The mesh for something like this is > always huge. Is there a way to treat the thin layers as 2D shells, while > keeping the thicker ones 3D? The model is being exported as a STEP file and > brought into Gmsh. > > > > Just include the surfaces in your model; Gmsh generates conformal meshes > so this internal surface can then be treated as a thin layer in your > solver. If you need duplicated nodes on the surface (which Gmsh normally > does not generate), you can run Plugin(Crack) on the resulting mesh. > > > > Thanks, > > Drew > > _______________________________________________ > > gmsh mailing list > > [email protected] > > 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 > > > > > > _____________________________________________________________________ > ERBE Elektromedizin GmbH > Firmensitz: 72072 Tuebingen > Geschaeftsfuehrer: Christian O. Erbe, Reiner Thede > Registergericht: Stuttgart HRB 380137 > >
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