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Modulus of Sandwich Core Materials under Compression

Published online by Cambridge University Press:  04 July 2016

H. L. Cox
H. L. Cox*
Affiliation:
NPL, Teddington
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Extract

The elastic modulus of a honeycomb sandwich core under transverse compression should be simply (ρE/ρ0), where ρ is the density of the honeycomb, ρ0 that of the material of the honeycomb and E the Young's modulus of the material. However when honeycomb sandwiches are tested under compression between flat platens it is common experience that the deformations recorded are markedly greater than those predicted from the theoretical modulus. In order to throw light on this discrepancy comparative tests have been made on three samples, two of normal thicknesses, namely in and in, and the third 8 in thick.

Type
Technical Notes
Information
The Aeronautical Journal , Volume 75 , Issue 722 , February 1971 , pp. 128 - 130
Copyright
Copyright © Royal Aeronautical Society 1971 

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