Solid body displaying without fill

[FAlves]

Hello,

I am attempting to model a hollow sphere in 3D, in NX10, because the shell thickness is too large for a 2D thin shell analysis to be adequate. I ran into a problem when I used the Revolve command to generate my geometry; I chose Solid as the body type.

On the FEM file, when I generate the mesh, I only see triangular elements on the outer surface but nothing on the inside. I was wondering if this type of display is some sort of default for NX10 or if it's something on my end and, if so, how I can correct it. Attached is an image of what I see when modelling the sphere.

Any help is appreciated and thanks in advance.

 

[cowski]

It appears that you have sheet bodies instead of a solid body. I'd guess something went wrong with the revolve operation. Double check that the geometry all lies on the same plane and that the vector chosen for the revolve operation is correct.

www.nxjournaling.com

 

[FAlves]

cowski, I mentioned I specifically selected Solid in the Body type option in the Revolve window

 

[JohnRBaker]

Yes, but even if you did select the 'Solid' output option and the boundary was open, or some other issue, the result will STILL be a sheet body. You can always select the body using the QuickPick and see what the list of objects is. If the last item is a 'Sheet Body', well...

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[cowski]

cowski, I mentioned I specifically selected Solid in the Body type option in the Revolve window

Yes, I saw that. That's why I responded: "I guess something went wrong with the revolve operation".

The rest of my post details some things to check which might lead to that sort of unexpected result.

www.nxjournaling.com

 

[FAlves]

Well, I checked what you guys mentioned. The axis of revolution is the correct one (otherwise I would, as you mentioned, get a sheet body), the geometry all lies in the same plane and it is indeed listed as a solid body on the QuickPick pop-up. The same exact thing happens if I extrude a simple square to create a cube: if I section it, it appears as a sheet body but is listed as a solid body (once again, with the Solid option picked on the Body type).

I'm thinking of resetting to the customer defaults since I might have tampered with some display option along the way. Think it might help?

 

[cowski]

If it is listed a solid body, then it is a solid body. The issue is likely due to your view section settings; make sure the "show cap" option is toggled on (in the "cap settings" section of the dialog).

www.nxjournaling.com

 

[JohnRBaker]

Check your 'View Section' options. Make sure that in the 'Cap Settings' section of the dialog, that the 'Show Cap' option is toggled ON.

John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Digital Factory
Cypress, CA
Siemens PLM:
UG/NX Museum:

To an Engineer, the glass is twice as big as it needs to be.

 

[FAlves]

So the cap was indeed turned off; I had been working with sheet bodies before and turned it off since I wanted to check the interior for meshing and other things. The model is meshing correctly now, too.

I feel genuinely ashamed for committing such a silly mistake. I was thinking on Solid Edge or SolidWorks terms, where when you section a solid it automatically renders with a cap. Thank you very much for your help.