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Macroscopic and microscopic mechanical behaviors of climbing tendrils

文献类型：期刊论文

作者Guo Q; Dong J. J.; Liu Y.; Xu XH(许向红); Qin Q. H.; Wang J. S.
刊名ACTA MECHANICA SINICA
出版日期2019-06-01
卷号35期号:3页码:702-710
关键词Climbing tendril Mechanical behaviors Structure-property relationship Large elongation
ISSN号0567-7718
DOI10.1007/s10409-019-00849-y
通讯作者Wang, J. S.(wangjs@tju.edu.cn)
英文摘要Tendril-bearing climbing plants must recur to the tendril helices with chiral perversion or dual chirality for climbing and to obtain sun exposure. Despite researchers' prolonged fascination with climbing tendrils since Darwin's time and even earlier, why the soft and slender tendrils can bear heavy loads such as the self-weight of a plant or additional load caused by rain remains elusive. In this paper, we take towel gourd tendrils as an example and investigate the macroscopic and microscopic mechanical behaviors of tendrils through experiments and simulations. Our study indicates that the tendril filament exhibits rubber-like hyperelastic behaviors and can particularly endure large elongation, which is mainly attributed to the superelasticity of the cellulose fibril helix contained in the cell wall. Combination of the tendril helical structure with dual chirality or chiral perversion at a macroscale and a cellulose filament helix at a subcellular level creates superior elasticity for biological species relying on support and climbing. This study provides deep insight into the structure-property relationship of climbing tendrils, and the relationship is useful for the bioinspired design of composite systems with superior elasticity.
分类号二类
WOS关键词HELICAL FIBER ACTUATORS ; PERVERSION ; GROWTH
资助项目National Natural Science Foundation of China[11872273] ; National Natural Science Foundation of China[11472191] ; National Natural Science Foundation of China[11602163] ; National Natural Science Foundation of China[11672297] ; Major Program of the National Science Foundation of China[11890683] ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; Australian Endeavour Research Fellowship
WOS研究方向Engineering ; Mechanics
语种英语
WOS记录号WOS:000472551500019
资助机构National Natural Science Foundation of China ; Major Program of the National Science Foundation of China ; Opening Fund of State Key Laboratory of Nonlinear Mechanics ; Australian Endeavour Research Fellowship
其他责任者Wang, J. S.
源URL[http://dspace.imech.ac.cn/handle/311007/79370]  
专题力学研究所_非线性力学国家重点实验室
推荐引用方式
GB/T 7714		 Guo Q,Dong J. J.,Liu Y.,et al. Macroscopic and microscopic mechanical behaviors of climbing tendrils[J]. ACTA MECHANICA SINICA,2019,35(3):702-710.
APA Guo Q,Dong J. J.,Liu Y.,许向红,Qin Q. H.,&Wang J. S..(2019).Macroscopic and microscopic mechanical behaviors of climbing tendrils.ACTA MECHANICA SINICA,35(3),702-710.
MLA Guo Q,et al."Macroscopic and microscopic mechanical behaviors of climbing tendrils".ACTA MECHANICA SINICA 35.3(2019):702-710.

入库方式： OAI收割

来源：力学研究所

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