Comparison of the flexural behavior of natural and thermo-hydro-mechanically densified Moso bamboo

被引：40

作者：

Dixon, P. G. ^{[1
]}

Semple, K. E. ^{[2
]}

Kutnar, A. ^{[3
]}

Kamke, F. A. ^{[4
]}

Smith, G. D. ^{[2
]}

Gibson, L. J. ^{[1
]}

机构：

[1] MIT, Dept Mat Sci & Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[2] Univ British Columbia, Dept Wood Sci, 2900-2424 Main Mall, Vancouver, BC V6T 1Z4, Canada

[3] Univ Primorska, Andrej Marusic Inst, Muzejski Trg 2, Koper 6000, Slovenia

[4] Oregon State Univ, Dept Wood Sci & Engn, 119 Richardson Hall, Corvallis, OR 97331 USA

来源：

EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS | 2016年 / 74卷 / 05期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

PHYLLOSTACHYS-PUBESCENS MAZEL; TENSILE PROPERTIES; ENGINEERED BAMBOO; STRANDING MOSO; PART I; WOOD; DENSITY; FIBER; HEAT; STRANDBOARD;

D O I：

10.1007/s00107-016-1047-9

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

The flexural properties in the longitudinal direction for natural and thermo-hydro-mechanically densified Moso bamboo (Phyllostachys pubescens Mazel) culm wall material are measured. The modulus of elasticity (MOE) and modulus of rupture (MOR) increase with densification, but at the same density, the natural material is stiffer and stronger than the densified material. This observation is primarily attributed to bamboo's heterogeneous structure and the role of the parenchyma in densification. The MOE and MOR of both the natural and densified bamboo appear linearly related to density. Simple models are developed to predict the flexural properties of natural bamboo. The structure of the densified bamboo is modelled, assuming no densification of bamboo fibers, and the flexural properties of densified bamboo are then predicted using this structure and the same cell wall properties of that of the natural material modelling. The results are then compared with those for two analogous structural bamboo products: Moso bamboo glulam and scrimber.

引用

页码：633 / 642

页数：10

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