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Contact After Failure

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    • Mehdi Saloo
      Subscriber

      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
      Ansys Employee
      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
      Ansys Employee
      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
        Subscriber

        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
      Ansys Employee
      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.
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