An experimental investigation of the effect of lip on the column strength of rolled sheet zee and angle sections
The hat section used by certain of the aircraft companies has been quite widely accepted as the most efficient compression carrying member when stiffened by a sheet. However, due to the difficulty of inspection and corrosion control, which is particularly important in naval aircraft, the Consolidat...
| Summary: | The hat section used by certain of the aircraft companies has been quite widely accepted as the most efficient compression carrying member when stiffened by a sheet. However, due to the difficulty of inspection and corrosion control, which is particularly important in naval aircraft, the Consolidated Vultee Aircraft Corporation has for some time been using open angle and zee sections formed from dural sheet. For this reason the members of the engineering staff of Consolidated Vultee became interested in the effect of lips on zee and angle sections such as are frequently used to stiffen panels occurring in the compression side of semi-monocoque structures subjected to bending loads.
This paper is an attempt to determine experimentally the optimum amount of lip for the sections under consideration. Sufficient tests are made to locate the column curves for these sections, and from the curves the strengthening effect of the lip noted.
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