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Non-Linear Stress-Strain Effects in the Flexural Wrinkling of Carbon Fibre Honeycomb Sandwich Beams

Published online by Cambridge University Press:  07 June 2016

A.K. Ditcher  and
J.P.H. Webber
A.K. Ditcher
Affiliation:
Department of Aeronautical Engineering, University of Bristol
J.P.H. Webber
Affiliation:
Department of Aeronautical Engineering, University of Bristol
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Summary

A theoretical analysis of the flexural wrinkling of a honeycomb sandwich beam with laminated faces having non-linear stress-strain behaviour is presented. Appropriate tangent moduli are used in the constitutive equations for the compression face and a double iteration technique is used to calculate wrinkling loads. Numerical results are given for sandwich beams with unidirectional and cross-ply carbon fibre reinforced plastic (CFRP) faces. Experimental failure loads of sandwich beams are compared with theoretical predictions, and, in general, the agreement between the two is good.

Type
Research Article
Information
Aeronautical Quarterly , Volume 33 , Issue 1 , February 1982 , pp. 1 - 24
Copyright
Copyright © Royal Aeronautical Society. 1982

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References

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