NDLI: Effects of grain angles of face veneer on surface wave velocities and dynamic shear moduli of wood-based composites

Content Provider	Springer Nature Link
Author	Hu, Yingcheng Nakao, Tetsuya Nakai, Takahisa Gu, Jiyou Wang, Fenghu
Copyright Year	2005
Abstract	The effects of grain angle of face veneer on surface wave velocity and dynamic shear modulus of three types of wood-based composites were examined using a surface wave propagation method. It was found that grain-angle dependence of surface wave velocity and dynamic shear modulus indeed exists for wood-based composites. Grain angles of face veneer were found to have substantial effects on the surface wave velocities and dynamic shear moduli of wood–plastic composite (WP), wood–fiberboard composite (WF), and wood–metal composite (WM). The orthotropic properties of the three composites were defined as the ratio of surface wave velocities at 0° and 90° grain angles (V0/V90), which were 3.7, 2.2, and 2.0 for WP, WF, and WM, respectively. For WP, WF, and WM, the dynamic shear moduli in the 90° grain angle of face veneer were approximately 7%, 19%, and 25% of that in the 0° grain angle, respectively. The relationships between grain angles of face veneer and the shear moduli of the three types of wood-based composites could be represented by Hankinson’s equation, and their optimal n values were 2.1, 1.2, and 1.3 for WP, WF, and WM, respectively.
Starting Page	286
Ending Page	289
Page Count	4
File Format	PDF
ISSN	14350211
Journal	Journal of Wood Science
Volume Number	51
Issue Number	3
e-ISSN	16114663
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-06-25
Publisher Place	Tokyo
Access Restriction	Subscribed
Subject Keyword	Wood-based composite Grain angle Surface wave velocity Dynamic shear modulus Characterization and Evaluation Materials Ceramics, Glass, Composites, Natural Methods Wood Science & Technology
Content Type	Text
Resource Type	Article
Subject	Biomaterials Forestry

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