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Some New Experiments on Buckling of Thin Wall Construction

Bridget, F. J. and Jerome, C. C. and Vosseller, A. B. (1934) Some New Experiments on Buckling of Thin Wall Construction. Transactions of the ASME, 56 (8). pp. 569-578.

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The first section of this paper describes a series of tests of the strength of thin-walled cylinders under a combination of torsion and axial compression or tension. Curves are obtained showing the strength of each of the several types of cylinders tested, under all possible combinations of these loads. All the curves obtained seem to have the same general form and the results suggest the possibility of finding a simple law by means of which a designer could determine the buckling strength of a structure under any combination of shear and normal stress, if he knows its strength under pure shear and under pure compressive stress. The second section describes tests made to investigate the independence of different possible types of buckling of a structure. A set of L-section struts, identical except for the widths of the sides, were tested in compression. With small widths the struts buckle as Euler columns but with the wider widths buckling of the sides, as plates hinged on three edges, occurs first. Great care was taken to eliminate the effect of initial eccentricities. The results check the well-known theories for these two types of buckling and indicate that, for practical purposes, the two types can be considered independently of each other. The results also illustrate how enormously the strength-weight ratio of thin wall construction may be affected by details of design.

Item Type:Article
Additional Information:© 1934 ASME. APM-56-6. Contributed by the Applied Mechanics Division and presented at the Annual Meeting, New York, N. Y., December 4 to 8, 1933, of the American Society of Mechanical Engineers. The test described in this paper were made at the Guggenheim Aeronautical Laboratory of the California Institute of Technology. The authors have been assigned to the Institute by the Navy Department for graduate work in aeronautics, and this work represents part of the requirements for the Master's Degree. The first section is by Lieutenant Bridget and the second by Lieutenants Jerome and Vosseller. The authors wish to thank Dr. Th. von Kármán, director of the Guggenheim Laboratory of the Institute, for the opportunity for making these researches. The researches were suggested by and carried out under the direction of Dr. L. H. Donnell. Acknowledgment is also due to L. Secretan, who cooperated in the first research, also to Dr. A. L. Klein and E. E. Sechler (all of the staff of the Institute) for numerous helpful suggestions.
Issue or Number:8
Record Number:CaltechAUTHORS:20141016-155556225
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ID Code:50462
Deposited On:17 Oct 2014 18:40
Last Modified:03 Oct 2019 07:23

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