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- Title
Effect of specimen configuration on the measurement of off-axis logarithmic decrement of solid wood measured by longitudinal and flexural vibration tests.
- Authors
Yoshihara, Hiroshi; Yoshinobu, Masahiro
- Abstract
Douglas fir ( Pseudotsuga menziesii) lumber was tested in terms of off-axis modulus of elasticity (MOEoff-axis) and off-axis logarithmic decrement ( λoff-axis) by longitudinal and flexural vibration (VTlong and VTflex) methods. Similar to the results obtained in a previous study, these results indicate that the values of MOEoff-axis are dependent on the length-to-width ratio of specimens when the value of off-axis angle ( θ) is approximately 15°. Although the λoff-axis values are also dependent on the length-to-width ratio, the dependence is not pronounced over a specific range of θ. To measure the λoff-axis value accurately, as well as the MOEoff-axis value, the specimen should be sufficiently slender.
- Subjects
DOUGLAS fir; WOOD measurement; LOGARITHMIC functions; FLEXURAL vibrations (Mechanics); MODULUS of elasticity
- Publication
Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, 2014, Vol 68, Issue 7, p839
- ISSN
0018-3830
- Publication type
Article
- DOI
10.1515/hf-2013-0241