Physics – Classical Physics
Scientific paper
2005-03-26
Physics
Classical Physics
J Wood Sci, in press (accepted April 12, 2004)
Scientific paper
The tension wood (TW) properties of a 70 year-old Acer sieboldianum Miq were analyzed by using the G-fiber model which was proposed in our previous paper. The roles of the G-layer on the origins of (1) a high large tensile growth stress, (2) a large longitudinal Young's modulus, and (3) a high longitudinal drying shrinkage in the tension wood xylem were discussed on the basis of the simulations using the G-fiber model. The results suggest that the G-layer generates a high tensile stress in the longitudinal direction during the xylem maturation; the longitudinal Young's modulus of the green G-layer becomes significantly higher than that of the lignified layer; furthermore, the G-layer tends to shrink extraordinarily higher than that of the lignified layer during the moisture desorption.
Abe Kentaro
Arakawa Yoshiharu
Gril Joseph
Okuyama Takashi
Yamamoto Hiroyuki
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