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

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• 作者：P. G. Dixon ; K. E. Semple ; A. Kutnar…
• 刊名：Holz als Roh- und Werkstoff
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：74
• 期：5
• 页码：633-642
• 全文大小：843 KB
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Life Sciences
  Wood Science and Technology
  Ceramics,Glass,Composites,Natural Materials
  Operating Procedures and Materials Treatment
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1436-736X
• 卷排序：74

文摘

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.Electronic supplementary materialThe online version of this article (doi:10.1007/s00107-016-1047-9) contains supplementary material, which is available to authorized users.