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The Elastic Constants of Plywood: A Discussion of the Effects of Grain Angle

R.F.S. Hearmon (Physics Section, Forest Products Research Laboratory)

Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Article publication date: 1 December 1942

Abstract

DIRECT observation (see Fig. 1) on a strip of veneer cut at an angle other than 0 deg. or 90 deg. to the grain shows that a bending moment parallel to the long axis of the strip is accompanied by a twist, in addition to the usual bending, and further, that the resistance to bending is higher when the accompanying torsion is prevented than when it is permitted. Similar phenomena are observed when the strip is subjected to a pure twist about the long axis; the distortion is again a combination of flexure and torsion, and a higher resistance to torsion is obtained when the accompanying bending is suppressed than when it is permitted.

Citation

Hearmon, R.F.S. (1942), "The Elastic Constants of Plywood: A Discussion of the Effects of Grain Angle", Aircraft Engineering and Aerospace Technology, Vol. 14 No. 12, pp. 336-340. https://doi.org/10.1108/eb030971

Publisher

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MCB UP Ltd

Copyright © 1942, MCB UP Limited