Gmsh unknown error
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Re: Gmesh unknown error
Hi,
I now made the wire model, and I fused it. Then I created cross section, and I meshed it. Assigned material and tried to compute it. However to no avail. I always get the same error: *ERROR in gen3dfrom1d: element 1 is a linear beam element with circular cross section
Please use quadratic elements for beams with circular cross section.
Does someone know what am I doing wrong?
I now made the wire model, and I fused it. Then I created cross section, and I meshed it. Assigned material and tried to compute it. However to no avail. I always get the same error: *ERROR in gen3dfrom1d: element 1 is a linear beam element with circular cross section
Please use quadratic elements for beams with circular cross section.
Does someone know what am I doing wrong?
- Attachments
-
- Sticks_mesh.FCStd
- (120.2 KiB) Downloaded 24 times
Kind regards,
Peter
Peter
Re: Gmesh unknown error
Sorry I want to try it but somhow GMSH is not part of the default FC anymore...
What i would do now is export the brep and check if you are able to create a mesh inside GMSH self. And if it workout well you can import that one. or compare what the differences are in settings.
To be honest i don't like the GMSH functions inside FC. For everything you need an separated function and most of the time Netgen is create a better mesh(at least for 3D)...
What i would do now is export the brep and check if you are able to create a mesh inside GMSH self. And if it workout well you can import that one. or compare what the differences are in settings.
To be honest i don't like the GMSH functions inside FC. For everything you need an separated function and most of the time Netgen is create a better mesh(at least for 3D)...
Re: Gmesh unknown error
Which version of FreeCAD do you use ? Gmsh should still be included.
Yeah, most meshing issues in FreeCAD happen with Gmsh. However, it's good to have two meshers to choose from and Netgen has some limitations. Most importantly, it doesn't support beam and shell elements in FreeCAD - it can only generate tetrahedrons and Gmsh is needed for other types of elements.
Re: Gmesh unknown error
Hi,
I am using:
OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.27422 (Git)
Build type: Release
Branch: master
Hash: d938733eaf2c2ce7cb18d1cbb56147185c473530
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.3
Locale: Slovenian/Slovenia (sl_SI)
So Jee-Bee you think issue is with mesh? Why is that since I get mesh is done correctly status?
Do you think it is possible to do the mesh in meshlab, and then import it?
I am using:
OS: Windows 10 Version 2009
Word size of FreeCAD: 64-bit
Version: 0.20.27422 (Git)
Build type: Release
Branch: master
Hash: d938733eaf2c2ce7cb18d1cbb56147185c473530
Python version: 3.8.6+
Qt version: 5.15.2
Coin version: 4.0.1
OCC version: 7.5.3
Locale: Slovenian/Slovenia (sl_SI)
So Jee-Bee you think issue is with mesh? Why is that since I get mesh is done correctly status?
Do you think it is possible to do the mesh in meshlab, and then import it?
Kind regards,
Peter
Peter
Re: Gmesh unknown error
Hi,
it helped =)
now the error says: *ERROR in gen3delem: first thickness. Any ideas?
it helped =)
now the error says: *ERROR in gen3delem: first thickness. Any ideas?
Kind regards,
Peter
Peter
Re: Gmesh unknown error
Code: Select all
OS: macOS 10.15
Word size of FreeCAD: 64-bit
Version: 0.20.29177 (Git)
Build type: Release
Branch: (HEAD detached at 0.20)
Hash: 68e337670e227889217652ddac593c93b5e8dc94
Python 3.9.13, Qt 5.12.9, Coin 4.0.0, Vtk 9.1.0, OCC 7.5.3
Locale: C/Default (C)
Installed mods:
* A2plus 0.4.56
* fasteners 0.3.41
* Assembly4 0.11.12
No i didn't say that. I sayed that if i don't get it to work i try in GMSH self. If it able to mesh there i should be able to do it too in FC.
I don't know meshlab so can't help with that
Re: Gmsh unknown error
I edited the title since the name is Gmsh
Re: Gmesh unknown error
MeshLab is not meant for finite element mesh generation but for operations on triangle meshes, like those contained in the STL files: https://en.wikipedia.org/wiki/Triangle_mesh
FreeCAD's Mesh Design module serves a similar purpose.
Re: Gmsh unknown error
Netgen is included if FreeCAD is compiled with Netgen. Gmsh binary is a separate programm. On Windows FreeCAD this binary is included. Genarally on OSX and Linux this binary has to be installed separately and the path might be set in FEM prefs.