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The Bending of a Long Strip Reinforced by Transverse Ribs

Published online by Cambridge University Press:  04 July 2016

G. G. Pope
G. G. Pope*
Affiliation:
Structures Department, Royal Aircraft Establishment, Farnborough
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Extract

When a long unreinforced flat elastic strip with free edges is bent to a uniform curvature about transverse axes in its own plane, anticlastic curvature is produced due to the influence of Poisson's ratio. Provided that the applied curvature is sufficiently small, the anticlastic curvature is constant across the strip and is proportional to the applied curvature. A finite deflection analysis shows, however, that the anticlastic deformation is reduced by the action of middle surface stresses, and the deformed strip approaches asymptotically a cylindrical form as the applied curvature is increased. Nevertheless, in some engineering applications it is necessary to limit the anticlastic deformation when the applied curvature is small, and for this purpose transverse ribs can be attached to the strip. In this note a small deflection analysis is given of the effect of uniformly spaced rigid ribs on the deformation of such a strip.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 69 , Issue 650 , February 1965 , pp. 131 - 133
Copyright
Copyright © Royal Aeronautical Society 1965

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References

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