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芦苇单茎的力学和吸湿特性表征

Characterization of Mechanical and Hygroscopic Properties of Individual Canes of Reed.

作者信息

Jiménez-Espada Montaña, Herrero-Adán Daniel, González-Escobar Rafael

机构信息

Department of Construction, School of Technology, University of Extremadura, Avda de la Universidad s/n, CP-10003 Cáceres, Spain.

Department of Engineering Design and Mathematics, University of the West of England, Bristol BS16 1QY, UK.

出版信息

Materials (Basel). 2021 Apr 24;14(9):2193. doi: 10.3390/ma14092193.

Abstract

The search for sustainability has led to the utilization of more ecological materials with at least, a similar structural performance to those used at present. In this regard, reed fits the environmental and structural requirements as it is a sustainable and biodegradable lignin-cellulose material with remarkable mechanical properties. This research confirms the reed's structural efficiency as it demonstrates that it has excellent strength and stiffness in relation to its density. The reed anisotropy has a large impact on its properties. Indeed, the strength and stiffness parallel to the fibers are clearly higher than in the perpendicular direction. The results confirm that strength and stiffness decrease with the moisture content and nodes act as reinforcement in compression and bending. If compared with steel, timber and concrete, the reed possesses the highest value for strength. Hence, reed constitutes a strong candidate for environmentally friendly engineering.

摘要

对可持续性的追求促使人们使用更多生态材料,这些材料至少具有与目前使用的材料相似的结构性能。在这方面,芦苇符合环境和结构要求,因为它是一种可持续且可生物降解的木质素-纤维素材料,具有卓越的机械性能。这项研究证实了芦苇的结构效率,因为它表明芦苇相对于其密度具有出色的强度和刚度。芦苇的各向异性对其性能有很大影响。实际上,平行于纤维方向的强度和刚度明显高于垂直方向。结果证实,强度和刚度会随着含水量的增加而降低,并且节点在压缩和弯曲时起到增强作用。与钢、木材和混凝土相比,芦苇具有最高的强度值。因此,芦苇是环保工程的有力候选材料。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/90d3/8123184/e2bf57deb2d5/materials-14-02193-g001.jpg

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