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The relation between ultimate strength and bending stiffness for Swedish pine and spruce timber. Strength in flat bending and compression strength parallel to the grain. Mechanical stress grading



The relation between ultimate strength and bending stiffness for Swedish pine and spruce timber. Strength in flat bending and compression strength parallel to the grain. Mechanical stress grading



Meddelande, Svenska Traforskningsinstitutet, A (485): 28



Mechanically stress-graded timber had greater strength in flat than in edge bending. Visual grading gave the opposite result in some cases. Revision of building codes is suggested, so that allowed bending stresses are given irrespective of bending direction. The test results could be used for modifying the adjustment of stress-grading machines for special grading of timber to be exposed to flat bending in use.

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Accession: 000782522

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