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Note on the Minimum-Weight Design of Thin-Walled Cells in Combined Bending and Torsion

Published online by Cambridge University Press:  28 July 2016

V. Cadambe  and
S. Krishnan
V. Cadambe
Affiliation:
National Physical Laboratory of India, New Delhi
S. Krishnan
Affiliation:
National Physical Laboratory of India, New Delhi
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Extract

In a recent paper the authors suggested that the minimum weight design of thin-walled cells in combined bending and torsion could be tackled by using the well-known concept of equivalent bending moment and torque. It is now felt that a more rational approach would be to base the analysis on the buckling behaviour of the walls of the cell under combined compression and shear and choose the dimensions such that the cell will just resist buckling. The second criterion for design is taken as a limit on the twist as adapted in the case of pure torsion. Two types of sections, rectangular and circular, are discussed in this note.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 60 , Issue 541 , January 1956 , pp. 65 - 66
Copyright
Copyright © Royal Aeronautical Society 1956

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References

1. Cadambe, V. and Krishnan, S. (1955). Minimum Weight Design of Thin-walled Cells in Torsion. Journal of the Royal Aeronautical Society, Vol. 59, February 1955.Google Scholar
2. Royal Aeronautical Society (1952). Handbook of Aeronautics No. 1, Structural Principles and Data, pp. 220–21, Sir Isaac Pitman & Sons Ltd., 1952.Google Scholar
3. Timoshenko, S. (1936). Theory of Elastic Stability, pp. 327 to 331, 357 to 362, and 480 to 486, McGraw-Hill Book Co. Inc., 1936.Google Scholar