FEM analysis issue

About the development of the FEM module/workbench.

Moderator: bernd

XtyM
Posts: 7
Joined: Fri Oct 11, 2019 1:18 pm

Re: FEM analysis issue

Postby XtyM » Mon Oct 14, 2019 1:18 pm

I will download (this evening) some exemples about constraints contact between parts that are already posted in the forum to check if my installation can run them. I will report back.

Regards.
XtyM
Posts: 7
Joined: Fri Oct 11, 2019 1:18 pm

Re: FEM analysis issue [Solved]

Postby XtyM » Mon Oct 14, 2019 2:03 pm

I deleted the sub mesh for the transversal bar and it solved the problem. So something is going wrong at the time to create a croaser mesh to the the sub-componenent (transversal bar) with a region mesh.

Than you all for your support.
Attachments
Skärmbild från 2019-10-14 16-02-06.png
Deleted sub mesh (region of mesh)
Skärmbild från 2019-10-14 16-02-06.png (289.09 KiB) Viewed 252 times
Skärmbild från 2019-10-14 15-59-28.png
Calculated!.
Skärmbild från 2019-10-14 15-59-28.png (285.2 KiB) Viewed 252 times
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bernd
Posts: 8470
Joined: Sun Sep 08, 2013 8:07 pm
Location: Zürich, Switzerland

Re: FEM analysis issue

Postby bernd » Mon Oct 14, 2019 2:15 pm

submeshs are not suppoerted by FreeCAD. Mesh regions and mesh groups are supported. If you have used either of both may be deactivate the preference of automatic constraint group meshing in FEM preferences. This speeds up a lot but could have problems in some circumstances.
XtyM
Posts: 7
Joined: Fri Oct 11, 2019 1:18 pm

Re: FEM analysis issue

Postby XtyM » Mon Oct 14, 2019 3:35 pm

bernd wrote:
Mon Oct 14, 2019 2:15 pm
submeshs are not suppoerted by FreeCAD. Mesh regions and mesh groups are supported. If you have used either of both may be deactivate the preference of automatic constraint group meshing in FEM preferences. This speeds up a lot but could have problems in some circumstances.
Perfect! now I do know the motive, and the alternatives to acelerate the process or not and how i can combine them.

Great Support!.

Regards.
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bernd
Posts: 8470
Joined: Sun Sep 08, 2013 8:07 pm
Location: Zürich, Switzerland

Re: FEM analysis issue

Postby bernd » Mon Oct 14, 2019 4:12 pm

stay tuned! We will have group support for Netgen meshes soon! https://forum.freecadweb.org/viewtopic.php?f=18&t=35778 Just keep in mind the FreeCAD motto, "Its done when its done" :mrgreen: