Mesh selection pb. in Aster wizard, Piston Tut.

Hello

I had a problem forwarding the piston tutorial (linear elaticity one) when i get in to the wizard of Code-Aster, selecting the mesh and the "use geom groups" option. if i choose the mesh it returns me this message: "At least a group without nodes need to be defined on the selected object"; if i choose whatever else, then: "The selected entry is not a mesh or SMESH component must be activated"...
i just did exactly what the tutorial is telling me to do, and doesn't happen...
Thanks.

Alexandre

Hello Claus

first of all let me thank you very much for the quick reply. i hadn't time to post last days, sorry.

Well, now i know i was doing something wrong, thats why i've got that message...
let me explain: i tried to follow the tutorial, that uses a 3d model, to simulate a plate in plane stress. once i realised this, i tried again with a 3d one and then i've got right results.
but, well, after all i don't have my problem solved yet... so i would like to ask you: there exists another linear-static analysis tutorial to the 2d plane-stress case? and Eficas tutorials?
Thank you again.

Alexandre

yeah, i did it!!
thank you and congratulations to the CAELinux Team!!
well, i've got just one doubt: one cannot make groups with nodes to put constraints and forces (pressures)? because aster brought me a solution only when i applied the boundary conditions to edge groups.
regards.

Alexandre