NDLI: Effect of moisture content on the longitudinal tensile creep behavior of wood

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Effect of moisture content on the longitudinal tensile creep behavior of wood

Content Provider	Semantic Scholar
Author	Kojima, Yoichi Yamamoto, Hiroyuki
Copyright Year	2004
Abstract	In our previous report, we investigated the effect of the microfibril angle (MFA) in the middle layer of the secondary wall (S2) on the longitudinal creep behavior of a thin homogeneous earlywood specimen sugi. In the present study, we investigated the role of moisture on the tensile creep behavior of wood. We discuss the creep behavior of the wood cell wall from the viewpoint of the composite structure of the cell wall and the properties of the constituent materials. A microtomed thin specimen of earlywood of sugi (Cryptomeria japonica D.Don) was used for the longitudinal tensile creep test. Creep tests were conducted at three moisture stages (oven-dry, air-dry, fiber saturation point) over a broad range of MFA. Results showed that the longitudinal tensile creep behavior was highly dependent on both the moisture content and the MFA. With a small MFA, the variation in the creep function among the three moisture states was very small. For a large MFA, the variation in the creep function was larger. At low moisture contents, the magnitude of the creep function was very small, while at high moisture content, it was very large except for the case of specimens with very small MFA. Those results show that the longitudinal tensile creep behavior was directly affected by the fine composite structure and the internal properties of the cell wall constituents.
Starting Page	462
Ending Page	467
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1007/s10086-004-0676-5
Volume Number	51
Alternate Webpage(s)	https://jwoodscience.springeropen.com/track/pdf/10.1007/s10086-004-0676-5
Journal	Journal of Wood Science
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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