how to merge nodes on two co planar faces in Ansys WB ???

[saimohan35]

Hi,
I am simulating fracture problem. for that, i split a body into two bodies with slice by plane. that gave two faces at same location (at intersection of bodies). Again, i split faces on each body at intersection into two faces with a sketch edge. Now, i have four faces at intersection(two faces on one body and two faces on other body). after meshing it i want to merge nodes on two faces(one face on one body and another face on another body). how can i merge nodes on two faces that exist in same location in ansys workbench???
(For my problem i cant use form parts in DM)

So, finally i need help on merging nodes on two geometrically similar faces at same location (coplanar faces).

 

[petb]

Make a named selection of the modes you want to merge. Insert a command snippet with apdl-code. Look for nummrg in the documentation. This should work:
[pre]
/prep7
nummrg,node
finish
[/pre]

 

[petb]

Sorry, forgot a few things. Prior to issuing the nummrg command, you will have to select the nodes in your named selection using the cmsel-command. Also, after the merge, you'll have to research all nodes.

Maybe using nummrg in WB is bad? I think I can recall a situation where it caused problems for me when using WB ver. 10.

Maybe coupling your dofs together using [pre]cpintf[/pre] is a better option? The procedure is the same as outlined above.

Hope this helps

/PB

 

[saimohan35]

coupling is not suitable for my problem... i want to have a single node at the interface... to get a continuous mesh i will use glue operation. For my problem i cannot use form new part option. can you tell me how to use VGLUE command in Ansys workbench DM ????

 

[petb]

This cannot be achieved with APDL. Once the file leaves workbench and enters into Mechanical APDL, you have no access to the underlying geometric entities created in Design Modeler or SpaceClaim. In mechanical APDL, you have access to nodes and elements only. VGLUE is a pre-processing command intended to be used on geometric entities created in Mechanical APDL pre-processor /prep7, it will not work the way you describe in your post.

/PB

 

[saimohan35]

Thnk you for your suggestion. i got your point