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Grading and properties of small-diameter Douglas-fir and ponderosa pine tapered logs


Grading and properties of small-diameter Douglas-fir and ponderosa pine tapered logs



Forest Products Journal: 11, 33-41



ISSN/ISBN: 0015-7473

Approximately 375 Douglas-fir (Pseudotsuga menziesii) and ponderosa pine (Pinus ponderosa) logs, 3 to 6 inches in diameter, were tested in third-point bending and in compression parallel to the grain. The moisture content at time of test was approximately 14%. Good correlations were found between the modulus of elasticity (MOE) in static bending and those obtained by transverse vibration. Good correlations were also found between modulus of rupture (MOR) and MOE.

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Accession: 031610163

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