Definining pressure on line, N/mm?

[Zonked]

Hi

I'm new to Ansys.

I'm working on a cross section of a pressure vessel. I have the dimensions modeled as a half cross section of the vessel.
But when adding the pressure "on line" on the inner line of the cross section of the vessel defined as N/mm, N/length, the units is kind of strange to me.

I know that the tank is designed for a pressure of 1.85 N/mm^2, but how do I calculate the correct value in N/mm for a section line?
I can't visualize it. Newton pr length!? What the heck.

 

[0rel]

I think you should use shell elements. 1D elements are usefull to study bars and beams, link 2 solids etc... They are not designed to model a pressure vessel.

 

[Zonked]

Ok, This is the tutorial I'm following now;

http://www.ndsu.edu/me/images/Kallmeyer/477/Pressure Vessel Example.pdf

I will try modeling in 3d after that, probably more accurate. I have only worked on 2d models in Ansys, so it should be interesting.

Thanks

 

[Zonked]

Ok, Ansys defines force per area for pressure on a line.

It makes sense if I think of the cross section as an extrusion, I got confused.