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Honeycomb Panel FEA in ANSYS

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Old   November 17, 2014, 01:31
Question Honeycomb Panel FEA in ANSYS
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Prateek G.
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I have modelled a Honeycomb panel in Creo 2.0. I want to perform modal analysis of the same. I chose to do that in Ansys because some limitations in Creo Simulate. But when I try to import the .iges file of the model in the Ansys APDL, it takes a lot of time (about 15-20 minutes).

I want to know what might be the problem? I think its size of the part file that's causing the problem, as the honeycomb model has a large number of small hexagonal cells.
Is there any way I can model the honeycomb panel in ANSYS itself, and then perform the Modal Analysis on it?

Thanks in advance!
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Old   November 17, 2014, 06:11
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Rechard
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Hi Prateek, as you asked the honeycomb panel can hardly be analyzed directly by the well-known software, such as ANSYS; because there is no corresponding element type to it in the software.


Here I am suggesting you 3 methods to resolve your problem,
  • We can create 3D FEA model of the real structure.
  • Create the stiffness matrices of the honeycomb panels through tests, and build a library of the element types, then the finite element calculation can be carried out.
  • Derive an orthotropic panel model from the initial 3D model of honeycomb panel
If you have any query, feel free to ask
Hope it can help you.
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Old   November 18, 2014, 10:38
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Prateek G.
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Thanks for replying, Richard.
Out of the 3 methods you've suggested, can you please tell me as to how exactly can I create a 3D FEA model of the honeycomb structure, or derive the orthotropic model from actual 3D model?

And also, which softwares do you suggest for this analysis?
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Old   November 19, 2014, 07:02
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ANSYS is the best for that.
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