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Calculating Bending moments in edge supported plates

Calculating Bending moments in edge supported plates

Calculating Bending moments in edge supported plates

(OP)
I am remote my office and do not have access to Roark. Does anyone have a bending formula for a square plate supported on all four edges with (2) point loads at 1/4 points?

RE: Calculating Bending moments in edge supported plates

I'm sure someone does, but you can always do yield line analysis as another option.

RE: Calculating Bending moments in edge supported plates

Yield line analysis will provide an upper limit to the actual failure load but will not provide an elastic solution; it will not provide elastic stresses or deflections of the plate.

Edit: text in red has been changed

BA

RE: Calculating Bending moments in edge supported plates

I looked in Roark,7th Edition, and there is no such loading + boundary condition.

RE: Calculating Bending moments in edge supported plates

I've got a couple of ultra conservative formulas I use for such a situation......but you probably need something more precise.

If prex's sheet doesn't help......I'd be willing to run a few [plates] for you on my software. (I sympathize strongly with being on-site and not having access to tools.)

RE: Calculating Bending moments in edge supported plates

Using yield line theory, I get P = 6m where P is the value of the point load and m is the yield moment of the plate per unit length. To allow for corner effects, it is usual to take P as 0.9*6m or 5.4m.

BA

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