Directional adhesion of gecko-inspired two-level fibrillar structures

	Directional adhesion of gecko-inspired two-level fibrillar structures
	He L. W.; Yan S. P.; Chu J. R.
	2014
发表期刊	European Journal of Mechanics a-Solids
ISSN	ISBN/0997-7538
期号	47 页码:246-253
摘要	Recently gecko's feet and gecko-inspired two-level fibrillar adhesives have been found to show directional adhesion property. In this paper, a theoretical model is proposed to predict the directional adhesion law of a two-level seta. The model predicts that for a typical two-level seta, there exists a structural parameters-dependent critical shear force, below and above which the bending deformation dominates or the axial deformation dominates. In the bending deformation dominated region, the adhesion force increases almost linearly with the applied shear force and the adhesion law can be tuned effectively by varying the structural parameters; while in the axial deformation dominated region, the adhesion force is no longer limited by the bending deformation and the adhesion law is almost the same with that predicted by the classical Kendall model. Additionally, an approximately optimum structure behaving consistently with geckos' hierarchical setal arrays is obtained by designing the structural parameters properly, especially the slanted angles. Thus this model can aid in interpreting the experimental test outcomes and designing optimal biomimetic two-level adhesives. (C) 2014 Published by Elsevier Masson SAS.
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43900
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	He L. W.,Yan S. P.,Chu J. R.. Directional adhesion of gecko-inspired two-level fibrillar structures[J]. European Journal of Mechanics a-Solids,2014(47):246-253.
APA	He L. W.,Yan S. P.,&Chu J. R..(2014).Directional adhesion of gecko-inspired two-level fibrillar structures.European Journal of Mechanics a-Solids(47),246-253.
MLA	He L. W.,et al."Directional adhesion of gecko-inspired two-level fibrillar structures".European Journal of Mechanics a-Solids .47(2014):246-253.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
He-2014-Directional （1749KB）			开放获取	CC BY-ND	浏览下载