Hi David,
1.True,nodal forces are in global coordinates.you can set a param to get them aligned to 2d elemnts edges (check the qrg)
2.For static balance, the summation of forces acting on a grid(node) must equal zero.external loads equal internal loads.
when you ask for gpforce in nastran it...
just in general ,wanted to know what nastran do with it.
I understand it saves me the trouble of calculating a new equivelent E and thickness when modeling hc panel.
does it mean the nastran stress output will be based on equivelent thickness and not on the user defined thickness ?
I mean...
Thank you for your replies.
I am looking for a better analytic approch(short cantilever beam under moment/transverse shear with thin circle profile) but could only find a correnction factor for shear deflection (Roark) which i dont find much useful.
Or even better maybe you can suggest a other...
hi all,
I've been a long time lurker ,this is my first post.I'm glad to be joining your community.
my problem :
I try to validate an aircraft fuselage fem model(built in nastran/patran),by comparing the axial stresses derived from nastran to a cantilever beam analytic Mc/I.
in the model I...
