[prateekg92]

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!

[Rechard]

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.

[prateekg92]

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?

[Rechard]

ANSYS is the best for that.