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Anisotropic Theory of Growth Stresses in Trees

Beck, J. L. (1974) Anisotropic Theory of Growth Stresses in Trees. New Zealand Department of Scientific and Industrial Research , Lower Hutt, New Zealand.

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Growth stresses are a consequence of the growth process in trees; they arise from stresses which develop in each new peripheral sheath of wood cells. This situation is analysed using a linearly-elastic, three-dimensional orthotropic model for wood. Expressions for the stress and strain distributions in a tree are derived. Some previous experimental work is reinterpreted by analysing the stress and strain redistributions that occur during various cutting processes. It is shown that the discrepancy in the qualitative behaviour of the radial strain between previous theories and experimental measurements may be accounted for by the redistribution of stresses that occurs during the preparation of a cross-cut disc in the experiments.

Item Type:Report or Paper (Report)
Additional Information:Report No. 452. The author gratefully acknowledges the useful comments made by Dr. G.N. Bycroft and Dr. I. D. Cave during preparation of the manuscript and also the part played by Professor P.P. Gillis in arousing the author's interest in this subject.
Record Number:CaltechAUTHORS:20191113-075428020
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99820
Deposited By: Tony Diaz
Deposited On:13 Nov 2019 16:14
Last Modified:13 Nov 2019 16:14

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