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The Local Instability of a Simple Integral Panel

Published online by Cambridge University Press:  28 July 2016

A. H. Chilver
A. H. Chilver*
Affiliation:
Department of Engineering, University of Cambridge
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Summary:

The local instability of a simple type of integral panel under uniform end compression is discussed firstly as a problem of interconnected flat plates, and secondly in terms of the torsional stability of the stiffeners. It is found that the second method under–estimates the “true” local buckling stress. This conclusion is in conflict with earlier work by Yusuff on closer study it is found that Yusuff's analysis involves two important assumptions which are generally unjustifiable. It is suggested that the collapse strength of a short compressed panel may be estimated with reasonable accuracy from a knowledge of the initial local buckling stress and the proof stress of the material of the panel.

Type
Research Article
Information
The Aeronautical Journal , Volume 59 , Issue 538 , October 1955 , pp. 690 - 693
Copyright
Copyright © Royal Aeronautical Society 1955

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References

1. Yusuff, S. (1954). Primary Instability of a Panel of Integral Construction with Unflanged Stiffeners. Journal Royal Aeronautical Society, December 1954.Google Scholar
2. Timoshenko, S. P. (1954). Theory of Bending, Torsion and Buckling of Thin–Walled Members of Open Crosssection. Journal Franklin Inst., Vol. 239, 1945.Google Scholar
3. Chilver, A. H. (1953). The maximum strength of the Thin–walled Channel Strut. Civil Engineering, December 1953.Google Scholar
4. Durham, R. J. and Skaer, P. D. (1955). Tensile Properties at Elevated Temperatures of Some Noral Wrought Aluminium Alloys. Aluminium Laboratories Ltd. Research Bulletin No. 3, March 1955.Google Scholar