Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/80219
Type: Artigo de periódico
Title: INFLUENCE OF MOISTURE CONTENT ON LONGITUDINAL, RADIAL, AND TANGENTIAL ULTRASONIC VELOCITY FOR TWO BRAZILIAN WOOD SPECIES
Author: Goncalves, R
da Costa, OAL
Abstract: The effects of MC on longitudinal, radial, and tangential ultrasonic wave velocity and on the respective terms of the stiffness matrix were examined for Brazilian pine (Araucaria angustifolia) and cupiuba (Goupia glabra). The ultrasonic wave velocity tended to increase with increasing MC, but above the FSP, they increased with increasing MC because of the influence of water on the bulk density. This result may be corrected by using the effective density above FSP, which depends on the mobility of free water and differs for the two species.
Subject: Stiffness terms
fiber saturation point
effective density
Country: EUA
Editor: Soc Wood Sci Technol
Rights: fechado
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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