Learning Forum

[Guangqi]

I would like to design a structure that a very thin object(0.06mm thick, 100mm diameter) is attached to a relativity thick object(0.5mm thick, 100mm diameter). But when I build the structure, the Spaceclaim defines this as a duplicate face, after fix it, one of them became a surface body not a solid.  I dont want it be a surface body because I would like to have certain thickness for the following simulation. the surface body also affected my meshing and contact define. How can I improve this structure?

[Rob]

If you compare the size of the domain with the thin plate thickness you're within the tolerance to merge (fix) the model. Why do you need to fix it? 

[Guangqi]

Thanks for you reply.

Is that okay if I do not fix it? Will that affect my following step like meshing or analyze? I though it is an "error" so that I must fix it.

[Karthik R]

Hello,

If these faces show up during meshing, there might be some issues you could run into. If you know that these are undesirable, I'd recommend that you fix them during the CAD creation before going into the meshing stage.

Thank you.

Best,

Karthik

[Guangqi]

Hi Karthik,

Thanks for your reply. I found if I use fix duplicated face in Spaceclaim, it will change the solid body into suface body. Will that affect my simulation? Could I keep these as duplicated faces if I know I need the top and bottom bodys are separated?

[Karthik R]

Yes, you will not be able to run a 3D simulation using surface bodies. You will need to convert it back to a solid body again before proceeding to mesh the domain.

Thanks.

Karthik