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On Optimum Fibre Orientation in an Annulus

Published online by Cambridge University Press:  04 July 2016

E. H. Mansfield  and
Carol Hanson
E. H. Mansfield
Affiliation:
RAE, Farnborough
Carol Hanson
Affiliation:
RAE, Farnborough
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Extract

The development of carbon fibres which exhibit high strength and stiffness raises many problems in the design of such fibre reinforced structures. One such problem concerns the optimum arrangement of fibres to support a given load system or load envelope, and this has been treated by Harris for planar load envelopes bounded by given values of applied stresses σX, σY and τXY. Here we consider a problem of optimum fibre arrangement to transfer a torque T across an annulus bounded by inner and outer radii r0 and kr0, respectively. This problem is much simpler than Harris', insofar as only one load system is considered, but it differs insofar as the stress pattern is not isotropic.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 73 , Issue 703 , July 1969 , pp. 593 - 594
Copyright
Copyright © Royal Aeronautical Society 1969 

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References

1. Harris, G. Z. Reinforced Sheets for Load Envelopes Which Combine Tension and Shear. Aeronautical Quarterly, Vol 18, pp 273–297, August 1967.Google Scholar
2. Michell, A. G. M. The Limits of Economy of Material in Frame Structures. Phil Mag, S6, Vol 8, pp 589–597, November 1904.Google Scholar
3. Cox, H. L. The Design of Structures of Least Weight. Pergamon Press, 1965.Google Scholar