Knowledge Management System of Institue of Mechanics, CAS
| 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.
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| Source Publication | Journal of The Royal Society Interface
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| 2008 | |
| Pages | 373-382 |
| ISSN | 1742-5689 |
| Abstract | 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. |
| Keyword | 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000252465900012 |
| WOS Keyword | GECKO FOOT-HAIR ; ELASTIC SPHERES ; ATTACHMENT DEVICES ; ROUGH SURFACES ; RIGID CYLINDER ; DUGDALE MODEL ; JKR MODEL ; CONTACT ; MECHANICS ; DEFORMATION |
| WOS Research Area | Science & Technology - Other Topics |
| WOS Subject | Multidisciplinary Sciences |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/26156 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Chen, SH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China. |
| Recommended Citation 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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