The influence of wood density on longitudinal wave velocity determined by the ultrasound method in comparison to the resonance longitudinal method

The paper deals with the relationship between density and the velocity of sound wave propagation in wood. The wave velocity was measured using the heartwood of doussie ( Afzelia bipindensis ), merbau ( Intsia bijuga ), panga panga ( Miletia stuhlmannii Taub.), tigerwood ( Astronium graveolens Jacq.)...

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Bibliographic Details
Published in:European journal of wood and wood products 2012-09, Vol.70 (5), p.767-769
Main Authors: Baar, Jan, Tippner, Jan, Gryc, Vladimír
Format: Article
Language:English
Subjects:
Biomedical and Life Sciences
Brief Originals Kurzoriginalia
Ceramics
Composites
Glass
Life Sciences
Machines
Manufacturing
Natural Materials
Processes
Wood Science & Technology
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Summary:The paper deals with the relationship between density and the velocity of sound wave propagation in wood. The wave velocity was measured using the heartwood of doussie ( Afzelia bipindensis ), merbau ( Intsia bijuga ), panga panga ( Miletia stuhlmannii Taub.), tigerwood ( Astronium graveolens Jacq.) and zebrano ( Microberlinia brazzavillensis ) by the two methods: ultrasound and resonance longitudinal. The velocity measured by the ultrasound method was always higher than the values gained by the resonance longitudinal method. However, there is a high correlation between the results of both methods. A change in sound wave velocity due to a change in density was not confirmed for any of the species. A similar conclusion was reached in the comparison among species.
ISSN:0018-3768
1436-736X
DOI:10.1007/s00107-011-0550-2