General Mechanical

General Mechanical

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Delamination of a composite beam and assigning interface elements

    • Hemin Sindy

      Hello everyone,

      I am new to using MAPDL, I created a model of a beam with 2 layers. The top layer is concrete and the bottom layer is SHCC. The beam is loaded under a 4 point bending configuration. At the moment I am using solid65 and link180 to model the concrete and reinforcement.


      My problem is that I know how to add apdl commands to change the material properties of the beam however I am lost at how to assign interface elements. I tried making a named selection of all the vertices where the 2 layers meet and I was thinking of how I could define the interface material.

      I was thinking of using INTER205 (as my model is made of 3D solids). If anyone could please explain how to do this or provide an example of apdl code on how to assign INTER205 or a similar type of element to the interface between 2 layers I woud really appreciate it. I have been searching for a long time without any results.

      Below is an image of where I show where I try to implement these interface elements as well as how I defined my other materials:




      Please let me know if you'd like me to send my files if that would make it easier.

    • Ashish Khemka
      Ansys Employee


      Please see if the following link helps:

      Delamination analysis of double cantilever beam - DCB with Ansys 14.5 Part 1/2 - YouTube


      Ashish Khemka

    • Hemin Sindy

      Dear Ashish,

      When I click on this link it says 'access denied', I am a student so maybe that is the reason?
      Furthermore I have seen a delamination example before however they used a CZM material defined in workbench, I need to use solid65 because I have to plot cracking. Does the method described in your posted link work with such elements?

      Kind regards,

      Hemin Sindy

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