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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.
Corresponding AuthorWang, J. S.(wangjs@tju.edu.cn)
Source PublicationACTA MECHANICA SINICA
2019-06-01
Volume35Issue:3Pages:702-710
ISSN0567-7718
AbstractTendril-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.
KeywordClimbing tendril Mechanical behaviors Structure-property relationship Large elongation
DOI10.1007/s10409-019-00849-y
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000472551500019
WOS KeywordHELICAL FIBER ACTUATORS ; PERVERSION ; GROWTH
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding ProjectNational 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
Funding OrganizationNational 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
Classification二类
Ranking4
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79371
Collection非线性力学国家重点实验室
Recommended Citation
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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