Damping Characteristic in Longitudinal Free Vibration and Bending Strength of Lumber with Knots.
نویسندگان
چکیده
منابع مشابه
Moisture Content - Strength Relationship for Lumber Subjected to Bending *
Kennedy (1965) reported small clear strength values for most Canadian species. The average value for modulus of rupture for Douglas Fir based upon 1057 specimens was reported to be 7540 p. s. (52 026 kN/m2 ) when tested in the green (wet) condition while the average value for air-dried specimens adjusted to 12% moisture content was found to be 12,850 p.s.i. (88 665 kN/m2 ), an increase of 71%. ...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 2000
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.49.390