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Recent content by rskumar88

  1. rskumar88

    Modeling Honeycomb sandwich panel

    I need to model an aircraft door with a sandwich construction as given below. -- Prepreg - Face skin (0/90) -- Prepreg - Doubler (+-45) -- Core Material -- Prepreg - Doubler (+-45) -- Prepreg - Face skin (0/90) I am doing it by using 3D solid modeling for the core and 2D shell modeling for the...
  2. rskumar88

    SOL 600 - Output requests

    and here is the bdf file.http://files.engineering.com/getfile.aspx?folder=a35f5013-ba32-4b53-8de3-f8181f4ddd8c&file=failure_openhole.bdf
  3. rskumar88

    SOL 600 - Output requests

    Hello SN, Thanks for your reply. But I cannot understand your answer. i am attaching my bdf file and the dat file. Can you please help me figuring out where should I include these commands. Thanks...
  4. rskumar88

    SOL 600 - Output requests

    Hello all, I am trying to simulate progressive failure analysis of composites using SOL 600. I am post processing the Marc T16 file in patran for the results. I am using displacement controlled load. So I need to have the "costraint forces" data to plot my results. But, in SOL 600 I am not able...
  5. rskumar88

    composite progressive failure analysis in Patran / Nastran SOL 600

    Hello hezhj2000, That's Ok. Thank you for your help. Kumar
  6. rskumar88

    composite progressive failure analysis in Patran / Nastran SOL 600

    Hello hezhj2000, Thank you once again for the reply. I have a problem now in plotting the load displacement curve. I am not able to see "Constraint Forces, Translational" in the results eventhough I selected this in the output requests. I need to have this to plot the load deflection curve...
  7. rskumar88

    composite progressive failure analysis in Patran / Nastran SOL 600

    Hello hezhj2000, Thanks for your valuable reply. Yes, I found out that I need to process the t16 file and got the load deflection plot as well. Now I have got another doubt, How can I determine the exact first ply failure load and the ultimate failure load from the obtained results ?. Thanks...
  8. rskumar88

    composite progressive failure analysis in Patran / Nastran SOL 600

    Dear all, I am using SOL 600 implicit nonlinear solver to simulate the progressive failure analysis of a multilayered composite laminate. And I used Puck failure criteria while defining material properties with gradual failure option selected. I am simulating the progressive failure analysis of...
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