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by makkemal
Sat Dec 01, 2018 3:39 pm
Forum: FEM
Topic: Fem constraint contact
Replies: 134
Views: 17978

Re: Fem constraint contact

have anybody done some testing ?
https://github.com/makkemal/FreeCAD/tree/auto_contact

I have made some small updates.
gear.PNG
gear.PNG (159.98 KiB) Viewed 440 times
by makkemal
Fri Nov 16, 2018 5:13 pm
Forum: FEM
Topic: What about the mesh?
Replies: 19
Views: 1126

Re: What about the mesh?

Has any progress been made to support Hex meshes in FreeCAD for FEM It seemed possible from this tread ? https://forum.freecadweb.org/viewtopic.php?style=4&f=18&t=20796&start=40#p215380 Good Hex mesh for would Increase usability of FreeCAD with complex geometries I run into bad elements often with T...
by makkemal
Thu Nov 15, 2018 5:12 pm
Forum: FEM
Topic: Fem constraint contact
Replies: 134
Views: 17978

Re: Fem constraint contact

Thanks Bernd that worked
by makkemal
Thu Nov 15, 2018 3:29 pm
Forum: FEM
Topic: Fem constraint contact
Replies: 134
Views: 17978

Re: Fem constraint contact

The first version of auto contact seems to be working I placed it under utilities contact.PNG Branch https://github.com/makkemal/FreeCAD/tree/auto_contact Two test files contact_test2.FCStd contact_test.FCStd Testing and comments would be great. I have one question how do I get the UI to auto open w...
by makkemal
Mon Nov 05, 2018 2:53 pm
Forum: FEM
Topic: Coupling of Codes
Replies: 4
Views: 322

Coupling of Codes

https://www.precice.org/codes/

Does anybody have any experience in coupling simulations in preCICE ?
I can see it being very useful for coupling between open-foam and Calculix in the current workbenches
by makkemal
Mon Nov 05, 2018 2:49 pm
Forum: FEM
Topic: Fem constraint contact
Replies: 134
Views: 17978

Re: Fem constraint contact

Yes Bernd you are right, thanks for your inputs
:D
by makkemal
Mon Nov 05, 2018 1:11 pm
Forum: FEM
Topic: Fem constraint contact
Replies: 134
Views: 17978

Re: Fem constraint contact

What do I need to do to test all this? May be than I have a even better idea The only input the script need is : Slope = 1000000.000000 # Contact stiffness Friction = 0.300000 # Friction These values are applied to all contact objects generated The default ui have these value but I guess a new ui w...
by makkemal
Wed Oct 31, 2018 10:08 am
Forum: FEM
Topic: Fem constraint contact
Replies: 134
Views: 17978

Re: Fem constraint contact

I have updated the script and it seems to be working now contact_apply_01.py Two test problem that work well contact_test.FCStd contact_test2.FCStd Now I'm stuck I was thing of just adding a bottom to the ConstraintContact ui that runs this script. But since the constraint contact was done in CPP an...
by makkemal
Wed Oct 24, 2018 7:46 pm
Forum: FEM
Topic: Modify stiffness matrix for FE Analysis
Replies: 3
Views: 328

Re: Modify stiffness matrix for FE Analysis

In CalCulix this is done in FORTRAN via user subroutine
http://www.feacluster.com/CalculiX/ccx_ ... de344.html
by makkemal
Wed Oct 10, 2018 11:00 am
Forum: FEM
Topic: Fem constraint contact
Replies: 134
Views: 17978

Re: Fem constraint contact

Civil engineers ..... :lol:
I do not get the point of this. What is this feature useful for?
https://www.ansys.com/products/structur ... assemblies

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