Summary
Naturally-occurring growth stress patterns in timber are modified by cutting. Stresses in cut timber may cause destructive cracks and splits. This research uses a three-dimensional finite element method to study how non-axisymmetric cuts affect the stress pattern. The results show that some oblique cuts reduce high stresses near the pith. Experimental work supports the calculations.
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References
Cook, R. D. 1974. Concepts and applications of finite element analysis. 1st Ed. New York: John Wiley & Sons
Gillis, P. P., Burden, A. K. 1972. Heart shakes and growth stresses. Wood and Fiber 4 (2): 95–98
Gillis, P. P. 1973. Theory of growth stresses. Holzforschung 27 (6): 197–207
Kübler, H. 1959. Studien über Wachstumsspannungen des Holzes-Erste Mitteilung: Die Ursache der Wachstumsspannungen und die Spannungen quer zur Faserrichtung. Holz Roh-Werkstoff 17: 1–9
Kübler, H. 1959. Studien über Wachstumsspannungen des Holzes-Zweite Mitteilung: Die Spannungen in Faserrichtung. Holz Roh-Werkstoff 17: 44–54
Kübler, H. 1973–1975. Private communications
Norris, C. B. 1962. Strength of orthotropic materials subjected to combined stresses. Report No. 1816, Forest Products Lab., Madison, U.S.A.
Tantichaiboriboon, V., Cook, R. D. 1976. Effect of shape of cut on growth-stresses induced cracking in cut timber. Report No. PB-251-364/AS, National Technical Information Service
Wilson, E. L. et al. 1972. Computer program for static and dynamic analysis of linear structural systems. Report No. EERC 72-10, Earthquake Eng. Res. Center, Berkeley, USA
Wilson, E. L. et al. 1973. Incompatible displacement models. Numerical and computer methods in structural mechanics. Fenves, S. J. et al. Eds. New York: Academic Press, 43–57
Zienkiewicz, O. C. 1971. The finite element method in engineering science. 1st Ed. London: McGraw-Hill
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The support of the National Science Foundation under Grant GK-39920 is gratefully acknowledged.
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Tantichaiboriboon, V., Cook, R.D. Studies on effect of shape of cut on growth-stress induced cracking in cut timber—Part I: Three dimensional stress analysis. Wood Sci. Technol. 11, 237–247 (1977). https://doi.org/10.1007/BF00365618
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DOI: https://doi.org/10.1007/BF00365618