COMPRESSIVE STRENGTH OF 24S-T ALUMINUM-ALLOY FLAT PANELS WITH LONGITUDINAL FORMED HAT-SECTION STIFFENERS HAVING FOUR RATIOS OF STIFFENER THICKNESS TO SKIN THICKNESS

摘要

Results are presented for a test program on 24s-T aluminum-alloy flat compression panels with longitudinal formed hat—section stiffeners. The results for panels in which the thicknesses of the stiffener material are 0.39 and 1.25 times the skin thickness are presented and incorporated with the results previously presented for panels in which the thicknesses of the stiffener material are 0.63 and 1.00 times the skin thickness. The results, presented in tabular and graphical form, show the effect of the relative dimensions of a panel on the buckling stress and the average stress at failure.