Insert Spacing Buckling?

[sarclee]

Hi, I always concern about inter-rivet buckling if the spacing is too large...

What about insert in honeycomb panel if the spacing between insert is too large? Is there a general rule that we can use, or we just calculate the buckling based on the alu sheet?

 

[SWComposites]

Calculate buckling using sandwich panel properties, not facesheet.