Shear strength and perpendicular-to-grain tensile strength of defect-free Scots pine wood from mature stands in Finland and Sweden |
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| Authors: | Mika Grekin Thibaud Surini |
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| Institution: | (1) Joensuu Research Unit, Finnish Forest Research Institute, P.O. Box 68, 80101 Joensuu, Finland;(2) INRA, Université Bordeaux 1, CNRS, UMR US2B, Talence, 33405, France |
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| Abstract: | Variations in parallel-to-grain static shear strength and perpendicular-to-grain tensile strength of Scots pine wood from
mature stands in Finland and Sweden were studied by means of linear mixed model analyses. Approximately 35% of the total variation
in shear strength could be described with readily available independent background variables; if the basic density was included,
approximately two-thirds of the total variation could be controlled. In tensile strength perpendicular to grain, only approximately
one-fourth of the total variation could be described with the respective background variables; the property was found to be
independent on wood density, and the reasons for the absence of strength–density relationship are discussed. |
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