Shared Boundary, Geant4

[rcarloc029]

Hello Everyone!

I am looking for a way to create and export a file with the following criteria:

1.) 2 Solids with the same boundary. 

     ex. 2 concentric cylinders where the surface between them is one and the same. 

2.) exported as tessellated mesh with triangular facets.

STL file is an obvious choice in the beginning but this only allowed me to export 1 body at a time where the boundary between the bodies is lost and exporting the two different bodies will create two different boundaries when put together again. 

These files will be used in a physics simulation platform called Geant4.

[admaiora]

You can have 1 single body with merged boundary (merging out seams between planar faces too)

You can obtain this from part or from an assembly.

You can't have two body with same merged boundary

[lena.talkhina]

Hello @rcarloc029 !

Great to see you here on Inventor Forum.

Did you find a solution?
If yes, please click on the "Accept as Solution" button as then also other community users can easily find and benefit from the information.
If not please don't hesitate to give an update here in your topic so all members know what ́s the progression on your question is and what might be helpful to achieve what you ́re looking for. 🙂

[johnsonshiue]

Hi! If you want solid bodies, the shared boundary concept does not apply. Either the faces and disappear or the faces are distinct and overlapped. There is no way to have a membrane-like face two separate two solids. This can only be done with surface bodies.

Many thanks!