LS Dyna

LS Dyna

Topics relate to LS-DYNA, Autodyn, Explicit STR and more

Duplicate Nodes

TAGGED: 

    • Mehdi Saloo
      Subscriber

      Hello,

      I have modeled three similar parts in contact. As you can see in the picture, in this case, there are some duplicated nodes in their interface as well as in the surface where supports and external parts touch each other.

      I wonder if I should merge these duplicated nodes with the “Merge Dup Nodes” button. Which options, in that case, should be active? As you can see in the picture “Delete Merged Nodes, Delete Degenerated Elem, and Clean Model” are active by default.

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

      Thanks in advance.

      Regards,

      Mehdi

    • Ram Gopisetti
      Ansys Employee

      Hi

      Know what does this " Dulicate node merging" is al about, its is the shared topology option and usually used to remove an contact and enforce bonded ( tied constrained )  between the parts. 

      so its now upto you to see ,  if you need those constraints or not. 

      cheers, ram 

      • Mehdi Saloo
        Subscriber

        Hello Ram,

         

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

        I assume that the parts are perfectly glued to each other. Therefore, in that case, merging duplicated nodes in their interface can provide a tied contact condition that is good for connection between parts when bonding the interface with glue material perfectly.

        I just wonder if I should merge these duplicated nodes with default settings as you can see in the picture,

        () Delete Merged Nodes

        () Delete Degenerated Elem

        () Clean Model

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

        Thanks in advance.

        Regards,

        Mehdi

Viewing 1 reply thread
  • The topic ‘Duplicate Nodes’ is closed to new replies.