This research investigated the variation in tensile properties and the relationship between the tensile properties and the air-dried density for the moso bamboo (Phyllostachys pubescens) by sampling at different heights and radial positions. Results showed that the variation of the longitudinal tensile properties in the radial direction was greater than that in the longitudinal direction. The longitudinal tensile modules of elasticity (MOE) ranged from 8.49 to 32.49 GPa. MOE for the outermost layer was 3–4 times as high as that for the innermost layer. The longitudinal tensile strength (MOR) ranged from 115.94 to 328.15 MPa. MOR for the outermost layer is 2–3 times as high as that for the innermost layer. Linear and curvilinear regressions were done from tested data of MOE, MOR and air-dried density in this paper. The linear equation worked a little better than the curvilinear one to predict the longitudinal MOR and MOE from air-dried density.
YU Huaqiang, FEI Benhua, REN Haiqing, JIANG Zehui, LIU Xing's
. Variation in tensile properties and relationship
between tensile properties and air-dried density for moso bamboo[J]. Frontiers of Forestry in China, 2008
, 3(1)
: 127
-130
.
DOI: 10.1007/s11461-008-0008-9
1. Armstrong J P Skaar C Zeeuwde C 1984 The effect of specific gravity on somemechanical properties of some world woodsWood Sci Tech18137146
2. Cheng J Q 1985 Wood ScienceBeijingChina Forestry Publishing House (in Chinese)
3. Forest Products Laboratory 1987 Wood Handbook: wood as an engineeringmaterialUSDA Forest ServiceWashington, DC
4. Liska J A 1965 Research progress on the relationships between densityand strengthUSDA Forest Service, ForestProd LabMadison, WI
5. Newlin J A Wilson T R C 1919 The relationof the shrinkage and strength properties of wood to its specific gravity.USDA Forest Service.Forest Prod LabMadison, WI
6. Walton D R Armstrong J P 1986 Taxonomicand gross anatomic influences on specific gravity-mechanical propertyrelationshipsWood Fiber Sci18(3)413420
7. Wang Z H 2001 Study on Properties Variation and Processing of BambooBeijingChineseAcademy of Forestry (in Chinese)
8. Xian X J Xian D G Ye Y W 1995 Bamboo Fiber Reinforced Resin Compositeand Its Micro FigureBeijingScience Press (in Chinese)
9. Xu F H 1987 Macromolecule Material Mechanics TestBeijingScience Press (in Chinese)
10. Yang Y F Liu Z K 1996 Phyllostachys pubescens wood: tensile elastic,modulus and tensile strengthJ zhejiangFor Coll13(1)2127 (in Chinese)
11. Ye M Q 1995 Evaluation for Tensile Strength of Bamboo Vascular BundleChina For Ind Q9(1)129137 (in Chinese)
12. Zhang S Y 1996 Wood specific gravity-mechanical property relationshipat species levelWood Sci Technol31181191