
doi: 10.2514/8.3458
A method for predicting the ultimate bending strength of multiweb box beams having formed sheet metal webs is presented. Equations are derived on the assumption that the ultimate moment is reached when local crippling occurs at the junctions of the webs and the compression skin. The proposed theory is compared with 49 beams fabricated from 75S-T6 sheet and tested by the NACA. The agreement between tests and theory was extremely good.
mechanics of solids
mechanics of solids
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