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(Please Help) How to apply tangential traction on a surface

(Please Help) How to apply tangential traction on a surface

(Please Help) How to apply tangential traction on a surface

(OP)
I want to apply tangential traction on a surface. But what I can do is to apply pressure. I cann't find a way to apply tangential traction.

How to do that? Thanks a lot!

p.s.
Another question:
Is there any method to model two volumes which are perfectly bonded. These volumes are two different kind of materials. I tried to use "Glue", but after that I found that the two volumes have the same material properties(I can not define different material properties)

I appreciate your help!


RE: (Please Help) How to apply tangential traction on a surface

I suggest that you use surface element, which can be used to apply pressure in any direction.
And for different materials in different regions, you should use property assignment in the menus.

RE: (Please Help) How to apply tangential traction on a surface

Zgqfem is right. Use Surface elements over the area you are going to apply tangential traction. I've done this quite a long time before. Lemme recall the exact way and i will let you know about this. I guess i found it somewhere on Ansys tips and tricks.

STRAIN2

RE: (Please Help) How to apply tangential traction on a surface

(OP)
Thanks a lot!

Yes, I tried and can solve it now. But I still have one problem.

When I use surface element "SURF154", I can apply pressure and tangential traction at z direction in cylindrical coordinate. When I apply tangential traction at theta direction and solve the problem, Ansys gave me a warning message that it can not transfer the surface traction to volume element. What is the problem?

I use Global cylindrical and nodal cylindrical coordinates.

Thanks!

Lucy1995

RE: (Please Help) How to apply tangential traction on a surface

using contact wizard to set up bounded and sign 2 different material by volumes, and you can do it

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