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How to glue bodies at common faces in Ansys workbench ?? (I cant use form parts option)))

How to glue bodies at common faces in Ansys workbench ?? (I cant use form parts option)))

How to glue bodies at common faces in Ansys workbench ?? (I cant use form parts option)))

(OP)


Hi,

i have four bodies in contact with common faces. I cant use "form a new part " feature for four parts. i didnt see any option to glue required solids. I am simulating fracture problem. For that, i want to glue three common faces, i dont want to glue fourth common face part. i am attaching screen shot. i think this can be solved by ansys apdl commands. but i am not familiar with apdl commands. So, can any one give idea to glue particular solids with apdl commands in workbench ???

RE: How to glue bodies at common faces in Ansys workbench ?? (I cant use form parts option)))

Hi,
by glue you mean bond? If that is what you mean, you must insert a contact region and define it by selecting the surfaces you want to bond, in contact definition you select "bond".

RE: How to glue bodies at common faces in Ansys workbench ?? (I cant use form parts option)))

(OP)
No, on three faces I want conformal mesh (common nodes at interface, this can be achieved in ansys apdl by glue). On fourth face i want different nodes at the inerface on each face. If i have a different nodes at fourth interface that faces will move away from each other during deformation of entire body. that is for crack problems. I dont want contacts between solids.
Any idea to do that ???

RE: How to glue bodies at common faces in Ansys workbench ?? (I cant use form parts option)))

Then just save the workbench geometry as *.anf file and import into Mechanical APDL. Perform whatever operation you need to on the geometry and continue to do your analysis in that environment (Mechanical APDL).

/PB

RE: How to glue bodies at common faces in Ansys workbench ?? (I cant use form parts option)))

If you can produce mapped meshes with coincident nodes on the surfaces you want to glue, you should be able to merge them with a NUMMRG command in a snippet. Make a named selection ( lets say GLUE ) on the surfaces you want to join. Then in your command snippet:

cmsel,s,GLUE
nummrg,node,toler
allsel

Toler is the tolerance applied when it decides which nodes to merge. Default is 1e-4. If the nodes are not quite coincident, specify a larger value. If you mesh size is at or near 1e-4, specify a smaller value.

Rick Fischer
Principal Engineer
Argonne National Laboratory

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