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Rob, This wasn't my study It's just a SAE paper that seemed to answer intitial thread question. On the rolling road in the WT: It's a matter of cars right height. We don't whant boundary layer to get thick enough (in model area) so it will effectively reduce the body to ground clearance...

I understand that I should model(CAD) my composite part as surfaces (thanks to Fkmeyers). What is the best way - outer surface (i.e. femail mold inner surface) or mid surface - all this for Patran/MSC.Nastran? Thank you

Thank you Fkmeyers

Hi, What would be best software combination for FEA of an assembly consisting of carbon/epoxy/honeycomb core monocoque with alu bulkheads and potted hardpoints. Tubular subframes and various brackets bolted to composite structure. Monocoque may have non uniform lay-up i.e. additional ply's or...

Hi, I'm new to FEA so I'd like to ask for advice. When modeling a composite structure in CAD (SolidWorks but I'm sure that idea is same for all major CAD systems) what is the best approach to do it with FEA friendliness in mind It will be an assembly consisting carbon/epoxy/honeycomb core...

Hi, What would be best software combination for FEA of an assembly consisting of carbon/epoxy/honeycomb core monocoque with alu bulkheads and potted hardpoints. Tubular subframes and various brackets bolted to composite structure. Monocoque may have non uniform lay-up i.e. additional ply's or...

Hi, I'm new to FEA so I'd like to ask for advice. When modeling a composite structure in CAD (SolidWorks but I'm sure that idea is same for all major CAD systems) what is the best approach to do it with FEA friendliness in mind It will be an assembly consisting carbon/epoxy/honeycomb core...

Thanks Vorwald

Tstanley, Thanks for the link!

Sorry :)

Thanks Garland

Dear SWComposites, Gbor (sorry don't know your names) and all who shared knowledge in this topic - thank you very much for your patience. What you're discussed here was something I was looking for long time and could not find. My problem is that at my time I had no possibility to go to...

J.Vorwald, You mentioned that "Another suggestion is that if your laminate has a core, you should model the core with brick elements, and the face sheets as composite laminates. That way, you can recover the XZ and YZ core stresses to compare with core shear allowables." I'd be very...

How about looking under "Tools" submenu? I'm not exactly sure - I'm very new to Patran and we got it with most modules enabled from the start. But I do have it under tools -> beam library Sorry if I'm missing something. Thanks Ted

Nick, I would save the file as IGES wireframe and import it to ANSYS. Than mesh it with beam elements. Hope this helps. Thanks Adrian

There was a study done on a road going passanger car shape. Baseline front ground clearance 300mm. Adding simple flat sheet airdam/spiler showed that decreasing body to ground gap changed the front Cl significantly. It also reduced overall CD up to a point. Spoiler depth of 90mm showed Cd...