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Wierd meshing problem

thread828-278419

Wierd meshing problem

Wierd meshing problem

(OP)
Hello All,

I have a two piece assembly consisting of a tube with a flange welded onto it.  The flange was placed first,with the tube mated to it.  When I meshed, only the flange would mesh and no elements were created for the tube.  When I opened up the tube by itself, it meshed without any problem.  I then created a similar assembly, but placed the tube first, then mated the flange to it.  Now the tube meshes and the flange does not!

I've made certain that materials were assigned to both pieces and that the part accuracies were the same.  If anyone has any ideas on what the heck could be going on I would greatly appreciate it.

Thanks,

Marcus

RE: Wierd meshing problem

Can you post one of your assemblies?

Steve

Stephen Seymour, PE
Seymour Engineering & Consulting Group
www.seymourecg.com  

RE: Wierd meshing problem

(OP)
It was even wierder than I thought, the parts would mesh if they were far enough apart.  The solutiion I found was to create a volume region on the flange part, basically creating a tube within the flange.  Now they mesh just fine.  Autogem must have struggled with the fact that the tube wall was small compared to the size of the flange.

Marcus

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