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Experimental study of deformation and of effective width in axially loaded sheet-stringer panels

From Summary: "The deformation of two sheet-stringer panels subjected to end compression under carefully controlled end conditions was measured at a number of points and at a number of loads, most of which were above the load at which the sheet had begun to buckle. The two panels were identical except for the sheet, which was 0.70-inch 24st alclad for specimen 1 and 0.025-inch 24st aluminum alloy for specimen 6. A technique was developed for attaching Tuckerman optical strain gauges to the shee… more

Date: February 1939

Creator: Ramberg, Walter; McPherson, Albert E. & Levy, Sam

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Compressive Tests of a Monocoque Box

"A monocoque box specimen of aluminum alloy was subjected to end compression and the strains in the stringers were measured up to loads at which permanent set became noticeable. The stringer strains at low loads agreed closely with those computed from the assumption of uniform stress distribution. Buckling of the 0.026-inch sheet between stringers and of the 0.075-inch shear web took place at stresses in accord with theoretical values" (p. 1).

Date: August 1939