Learning Forum

[Mehdi Saloo]

Hello, 

I have modeled three similar parts in contact. I assume that the parts are perfectly glued to each other. Therefore, in that case, I merged duplicated nodes in their interface to provide a tied contact condition. However, after delamination, the plies cannot see each other and pass through each other. I wonder if I can define an extra proper contact between the plies to prevent such an unrealistic behavior. I wonder whether the Automatic-Surface-to-Surface contact algorithm is a proper one.

I would appreciate it if you could give me some advice.

Thanks in advance.

Regards,

Mehdi

[Jim Day]

Leave parts merged bu add a *CONTACT_ERODING_SINGLE_SURFACE with all three parts on the SURFA side. SURFB side should be blank.

[Jim Day]

Leave parts merged but add a *CONTACT_ERODING_SINGLE_SURFACE with all three parts on the SURFA side. SURFB side should be blank.

[Mehdi Saloo]

Hello Jim,

Thanks ever so much for your help, I really appreciate it.

I would appreciate it if you could see the following picture and confirm that I have added the contact properly.

Jim, can you please tell me briefly what this contact does for the model?

Thanks in advance.

Regards,

Mehdi

[Jim Day]

You've set SURFATYP to 3 so that means SURFA is interpreted as a part ID. To put multiple parts on the slave side, you must set SURFATYP to 2 and then you can set SURFA to a part set ID. A part set is defined using *SET_PART.