Extracting Shell Forces (Nx, Ny, Nxy) 1

[enghelp2806]

Hello, it might seem like a dumb question, but how would I extract shell forces from my FE Model? I have a model made up of many 2D Shell Elements and have gridpoint forces and element forces output. I know that the shell forces are really running loads (or membrane forces). And I can extract the x and y component shell forces, which are really my Nx and Ny running loads (force/unit length). How can I extract the Nxy running load?

I'm using Patran, and maybe I'm overthinking it, but Nxy isn't the resultant of Nx and Ny, right? Is Nxy the max shear acting on the shell element?

Thanks in advance.

 

[rb1957]

no, Nxy is the shear force, Nx and Ny are normal forces.

FeMap output will include stresses and forces ... if you asked for them in the deck output.

You can see what you have by looking at the vectors FeMap allows you to plot.

"Hoffen wir mal, dass alles gut geht !"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.

 

[SWComposites]

You extract Nxy the same way you extract Nx and Ny. Nxy is a shear running load (not resultant of Nx and Ny).

What specifically do you want to do with the extracted Nx, Ny, Nxy loads?