boundary conditions on calculix

[LordKelvin]

hi guys, I'm performing a simple structural analysis on a rectangular quarry beam loaded on 7 areas and supported (from below) in two. loading the step and meshando, then calculix reads me just 6 surfaces (4 side and two section).

I would in practice need to apply boundary conditions as loads and forces (they would therefore be pressured at that point) only obviously on those areas. I tried in cad (catiav5) to create additional surfaces but I don't read calculix. If I add a solid part to that point the law but I'm changing the piece so I don't like it.

do you have advice on how to apply boundary conditions only on particular areas of an extended surface?

Thank you.

Mario

 

[Andrea P]

Hi.
You should divide the surface into the cad modeler. At that point on calculix cgx you can identify the sets on which to apply pressure.

Andrea

 

[meccanicamg]

I learned from not much to realize everything with freecad which contains the workbench fem with motor calcullix.
with the modeler in the environment part amounts the model 3d, I do a sketch with the division rows and with the Boolean operator cut cut the surface with the sketch lines.
then with the fem module I can apply the forces on the indicated areas.