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New Research on the Use of Hardening Plastics for Aircraft Construction*

Published online by Cambridge University Press:  28 July 2016

Wilhelm Kuech
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Extract

Laminated materials incorporating plastics seem to be especially well suited lor highly stressed aircraft components, by reason of their good strength properties. Paper, fabric and wood veneers treated with plastics on a phenolic basis were tested with regard to their strength, especially in bending, shear, absorbed energy in impact bending, notching strength and in their resistance against moisture. Further, the behaviour of compressed plastics was studied at different temperatures under static and dynamic loads. A part of the research was extended to pure phenol resin and to thermoplastics based on methacrylate and polyvinylchloride. The bonding properties of laminated compressed plastics were established. Concluding, some experiments relating to the practical manufacture of aeroplane components are communicated.

Type
Research Article
Information
The Aeronautical Journal , Volume 44 , Issue 349 , January 1940 , pp. 44 - 73
Copyright
Copyright © Royal Aeronautical Society 1940

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Footnotes

*

Translated from Jahrbuch, 1938, der Deutsche Luftfahr Forschung.

References

Note on page No 46 * Under wooden material of this kind such material is understood which is made from Beech veneers impregnated with synthetic resin and compressed under high pressure (“ Lignofol ”). The expression “Hardwood” which is often used is misleading, as this term is already in common use in the wood trade and in the general wood manufacturing industry.

Note on page No 63 * Subsequent to a submersion of 100 hours in water,

Note on page No 63 † Failure due to shear in the wood.

Note on page No 64 * This work has been assisted by the supply of material and the construction of press moulds by the Dynamit A.-G. at Troisdorf. the Roemmler A.-G. at Spremberg, and the Siemens-Schuckertwerke A.-G. at Berlin.

Note on page No 68 1 Resin-bonded wood veneers pressed from 8 veneers with the grain arranged parallel and from fabric layers (8 veneers, 2 fabric layers).

Note on page No 68 2 Resin-bonded wood veneers pressed from cross-wise arranged veneers.