Macroscopic and microscopic mechanical behaviors of climbing tendrils

doi:10.1007/s10409-019-00849-y

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	Macroscopic and microscopic mechanical behaviors of climbing tendrils
	Guo Q; Dong J. J.; Liu Y.; Xu XH(许向红); Qin Q. H.; Wang J. S.
通讯作者	Wang, J. S.(wangjs@tju.edu.cn)
发表期刊	ACTA MECHANICA SINICA
	2019-06-01
卷号	35 期号:3 页码:702-710
ISSN	0567-7718
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.
关键词	Climbing tendril Mechanical behaviors Structure-property relationship Large elongation
DOI	10.1007/s10409-019-00849-y
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:000472551500019
关键词[WOS]	HELICAL FIBER ACTUATORS ; PERVERSION ; GROWTH
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
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
项目资助者	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
论文分区	二类
力学所作者排名	4
RpAuthor	Wang, J. S.
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/79370
专题	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.

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