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Loss of Stiffness in a Heated Wing: An Inequality

Published online by Cambridge University Press:  04 July 2016

E. H. Mansfield
E. H. Mansfield*
Affiliation:
Royal Aircraft Establishment, Farnborough
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Extract

The loss of torsional or flexural stiffness due to thermal stresses in a thin solid wing is now well known and has been considered by a number of authors, e.g. Dryden and Duberg, Vosteen and Fuller, Bisplinghoff, Hoff, Budiansky and Mayers, Argyris, and the present author. Exact analyses are available only for the “one-dimensional” case of a wing of infinite aspect ratio with arbitrary chordwise distribution of wing thickness and temperature. The loss of stiffness in a similar wing of finite aspect ratio is not as great and, in particular, the proportional reduction in flexural stiffness in a low aspect ratio wing will tend to be less than the proportional reduction in torsional stiffness.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 67 , Issue 627 , March 1963 , pp. 191
Copyright
Copyright © Royal Aeronautical Society 1963

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References

1.Mansfield, E. H. The Influence of Aerodynamic Heating on the Flexural Rigidity of a Thin Wing. A.R.C. R. & M. No. 3115, September 1957.Google Scholar
2.Ieffreys, H. and B. S., Methods of Mathematical Physics. 2nd ed., C.U.P., p. 54.Google Scholar
3.Mansfield, E. H. Leading–Edge Buckling Due to Aerodynamic Heating. A.R.C. R. & M. No. 3197, May 1959.Google Scholar