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Web Frame - Panel Deflection

Maximum lateral deflection of a simply-supported plate panel under uniform pressure - the classic rectangular-plate bending solution.

Web frameDeflectionPlate
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Formula, assumptions, and limits

wmax=αpb4Dw_{max} = \alpha \frac{p b^4}{D}
SymbolMeaningUnit
a/ba/bPanel aspect ratio
ppUniform pressurekN/m²
DDFlexural rigidityN·mm

Source: Roark's Formulas for Stress & Strain

In short

Maximum lateral deflection of a simply-supported plate panel under uniform pressure - the classic rectangular-plate bending solution.

Learn the theory Hull Strength and Longitudinal Bending