[Gmsh] Problem with importing a mesh in Abaqus
Omid Mahabadi
omid.mahabadi at geomechanica.com
Thu May 2 18:51:42 CEST 2013
Dear Pierre,
Unfortunately, I do not have access to Abaqus now so I cannot really
test anything. You may want to directly post on the Abaqus forum.
Good luck,
Omid
On 02/05/13 10:37 AM, Pierre-Frederic Villard wrote:
> Dear Christophe and Omid,
>
> The SVN r15421 did solve partially my problem. I manage to import the
> mesh in Abaqus/CAE 6.12. "Physical" elements are nicely recognized as
> Assembly's Sets, even with their name.
>
> However, I cannot use them to apply boundary conditions. Do you know
> where the problem comes from or should I try to directly post on
> Abaqus forum?
>
> .geo and .inp files are attached.
>
> Thank you very much for the help.
>
> Best wishes,
>
> Pierre
>
>
> On Fri, Apr 5, 2013 at 4:25 PM, Christophe Geuzaine
> <cgeuzaine at ulg.ac.be <mailto:cgeuzaine at ulg.ac.be>> wrote:
>
>
> On 05 Apr 2013, at 16:13, Omid Mahabadi
> <omid.mahabadi at geomechanica.com
> <mailto:omid.mahabadi at geomechanica.com>> wrote:
>
> > Hi,
> > I thought quite a bit about element types in Abaqus. The reality
> is that there are so many different element types in Abaqus that
> makes defining a "generic" type rather impossible. I would suggest
> to keep the default Abaqus export as currently is, but give the
> user the option to define custom types in the gmsh geometry file.
> For instance, in the case of a 2D mesh, the user may define a
> maximum of two strings for the 1D and 2D element types, which can
> look like:
> > Mesh.Abaqus.ElementType.1D = "C1D2"
> > Mesh.Abaqus.ElementType.2D = "C2D3"
> > (I'm just mimicking gmsh's syntax here)
> >
> > I discussed the above suggestion with another colleague of mine
> who has used Abaqus in the past and it made sense to them. What
> are your thoughts?
> >
>
> With SVN r15202 I at least changed the default tags to tags that
> should be understood by Abaqus/Standard (had to change lines,
> triangles and quads). We might want more flexibility in the
> future, but it might also be overkill (we need types for 1st order
> and 2nd order elements, etc.).
>
>
> > Thank you,
> > Omid
> >
> >
> > On 05/04/13 06:35 AM, Christophe Geuzaine wrote:
> >> On 05 Apr 2013, at 12:07, Christophe Geuzaine
> <cgeuzaine at ulg.ac.be <mailto:cgeuzaine at ulg.ac.be>> wrote:
> >>
> >>> On 18 Mar 2013, at 18:03, Pierre-Frederic Villard
> <pierre-frederic.villard at univ-lorraine.fr
> <mailto:pierre-frederic.villard at univ-lorraine.fr>> wrote:
> >>>
> >>>> Hi,
> >>>>
> >>>> I have issues with importing gmsh-created meshes in Abaqus
> 6.12. I tried two methods, which equally failed:
> >>>> 1 - I tried to save the mesh as OpenCASCADE step format but I
> have an error: "Error : No OpenCASCADE model found"
> >>> Hi Pierre-Frederic - This would actually not export the mesh,
> but the CAD model - so it's not what you want.
> >>>
> >>>> 2 - I tried to save the model as an Abaqus INP file but I
> have a problem importing it in Abaqus : "Element type "C2D3" is
> not supported." with triangles and "Element type "C1D2" is not
> supported" with segments.
> >>>>
> >>> Indeed. I just had a look at the Abaqus documentation, and
> C2D3 and C1D2 do not seem to be in the general "Element Indexes"
> available in Abaqus/Standard.
> >>>
> >>> What should we use when we export "generic" elements (i.e.,
> not linked to any physics)?
> >>>
> >>> @Omid - any ideas?
> >> I've committed r15202 with the ideas from
> >>
> >> https://geuz.org/trac/gmsh/ticket/129
> >>
> >> @Abaqus users: let me know if this is better...
> >>
> >>
> >>
> >>>
> >>>
> >>>> Does anyone have any idea how to solve this problem?
> >>>>
> >>>> Cheers,
> >>>>
> >>>> Pierre
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> gmsh mailing list
> >>>> gmsh at geuz.org <mailto: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
> <http://www.montefiore.ulg.ac.be/%7Egeuzaine>
> >>>
> >>>
> >>>
> >
> > --
> > Omid Mahabadi
> > Geomechanica, Inc.
> > Tel: (647) 478-9767 x824 <tel:%28647%29%20478-9767%20x824>
> >
>
> --
> Prof. Christophe Geuzaine
> University of Liege, Electrical Engineering and Computer Science
> http://www.montefiore.ulg.ac.be/~geuzaine
> <http://www.montefiore.ulg.ac.be/%7Egeuzaine>
>
>
>
>
--
Omid Mahabadi
Geomechanica, Inc.
Tel: (647) 478-9767 x824
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