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Buckling of Triangular Plates
2

Buckling of Triangular Plates

Buckling of Triangular Plates

(OP)
I have a shear panel which approximates a triangle in shape, height a, base b. I want to find the critical shear buckling stress.
I have some buckling curves for rectangular panels in shear but I think if I idealise my triangular panel as a rectangular panel of dimensions a and b then that will give me a very conservative result.
I seem to recall a method of idealising the triangular panel as a rectangular panel of dimensions 0.67a and 0.67b ie a smaller rectangle, and then using the buckling curves for a rectangular panel to estimate my buckling stress.
Can anyone suggest a better method?

RE: Buckling of Triangular Plates

Could you elaborate on how the panel is being loaded?  I keep picturing your structure looks like a gusset, or a covered truss.  Is that right?

Steven Fahey, CET

RE: Buckling of Triangular Plates

Use a finite element model, with carefully selected boundary conditions and applied loads.

RE: Buckling of Triangular Plates

I doubt you actually have a triangular shear panel.  Have you tried putting shear flows on the edges and achieving translational and rotational balance?

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