Tuning The Geometrical Parameters Of Biomimetic Fibrillar Structures To Enhance Adhesion

doi:10.1098/rsif.2007.1121

IMECH-IR > 力学所知识产出(1956-2008)

	Tuning The Geometrical Parameters Of Biomimetic Fibrillar Structures To Enhance Adhesion
	Chen SH(陈少华); Soh AK; Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
发表期刊	Journal of The Royal Society Interface
	2008
页码	373-382
ISSN	1742-5689
摘要	Fibrillar structures are common features on the feet of many animals, such as geckos, spiders and flies. Theoretical analyses often use periodical array to simulate the assembly, and each fibril is assumed to be of equal load sharing (ELS). On the other hand, studies on a single fibril show that the adhesive interface is flaw insensitive when the size of the fibril is not larger than a critical one. In this paper, the Dugdale Barenblatt model has been used to study the conditions of ELS and how to enhance adhesion by tuning the geometrical parameters in fibrillar structures. Different configurations in an array of fibres are considered, such as line array, square and hexagonal patterns. It is found that in order to satisfy flaw-insensitivity and ELS conditions, the number of fibrils and the pull-off force of the fibrillar interface depend significantly on the fibre separation, the interface interacting energy, the effective range of cohesive interaction and the radius of fibrils. Proper tuning of the geometrical parameters will enhance the pull-off force of the fibrillar structures. This study may suggest possible methods to design strong adhesion devices for engineering applications.
关键词	Adhesion Fibrillar Interface Contact Mechanics Pull-off Force Gecko Foot-hair Elastic Spheres Attachment Devices Rough Surfaces Rigid Cylinder Dugdale Model Jkr Model Contact Mechanics Deformation
DOI	10.1098/rsif.2007.1121
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000252465900012
关键词[WOS]	GECKO FOOT-HAIR ; ELASTIC SPHERES ; ATTACHMENT DEVICES ; ROUGH SURFACES ; RIGID CYLINDER ; DUGDALE MODEL ; JKR MODEL ; CONTACT ; MECHANICS ; DEFORMATION
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
引用统计	被引频次：18[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/311007/26156
专题	力学所知识产出(1956-2008)
通讯作者	Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Chen SH,Soh AK,Chen, SH . Tuning The Geometrical Parameters Of Biomimetic Fibrillar Structures To Enhance Adhesion[J]. Journal of The Royal Society Interface,2008:373-382.
APA	陈少华,Soh AK,&Chen, SH .(2008).Tuning The Geometrical Parameters Of Biomimetic Fibrillar Structures To Enhance Adhesion.Journal of The Royal Society Interface,373-382.
MLA	陈少华,et al."Tuning The Geometrical Parameters Of Biomimetic Fibrillar Structures To Enhance Adhesion".Journal of The Royal Society Interface (2008):373-382.

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