The effect of geometry on the adhesive behavior of bio-inspired fibrils
文献类型：期刊论文
| 作者 | Peng ZL(彭志龙) ; Chen SH(陈少华); Chen, SH
|
| 刊名 | SOFT MATTER
 |
| 出版日期 | 2012-10-01 |
| 卷号 | 8期号:38页码:9864-9869 |
| 通讯作者邮箱 | chenshaohua72@hotmail.com |
| 关键词 | Contact Shape Crack-Growth Zone Model Nano-Film Microstructure Attachment Force Interfaces Mechanics Friction |
| ISSN号 | 1744-683X |
| 产权排序 | [Peng, Zhilong;Chen, Shaohua] Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China |
| 通讯作者 | Chen, SH ; Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China. |
| 中文摘要 | Inspired by the special climbing ability of geckos and insects, the effects of geometry, including the end-shape and size, on the adhesion features of bio-inspired fibrils, are investigated. It is found that, the adhesion force of a mushroom-shaped fibril in perfect contact with a rigid substrate decreases with the increase of the peeling angle, but it will increase with an increasing flange thickness at a determined peeling angle. With the same contact length, the mushroom-shaped fibril can achieve much larger adhesion forces than the cylindrical or spatular one due to a larger effective region of the cohesive zone. The effect of the shaft width of the mushroomed-shaped fibril on the adhesion force with and without interfacial defects is also considered, and the results are further compared qualitatively with the experimental ones. A critical contact length for the mushroom-shaped fibril is further found, above which the adhesion force attains a maximum. For a multi-fibril structure, the phenomenon of almost equal load sharing for each fibril is verified numerically, which is consistent with the existing experimental observation. All the results in this paper should be helpful for the understanding of the micro-adhesion mechanism of biological adhesive systems and the design of novel adhesives. |
| 学科主题 | 新型材料的力学问题 |
| 分类号 | 一类 |
| 收录类别 | SCI ; EI |
| 资助信息 | The work reported here is supported by NSFC through grants #10972220, #11125211, #11021262 and the 973 Nano-Project (2012CB937500). |
| 原文出处 | http://dx.doi.org/10.1039/c2sm26390d |
| 语种 | 英语 |
| WOS记录号 | WOS:000308661700016 |
| 公开日期 | 2013-01-18 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/46737]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Chen, SH |
| 推荐引用方式 GB/T 7714 | Peng ZL,Chen SH,Chen, SH. The effect of geometry on the adhesive behavior of bio-inspired fibrils[J]. SOFT MATTER,2012,8(38):9864-9869. |
| APA | Peng ZL,Chen SH,&Chen, SH.(2012).The effect of geometry on the adhesive behavior of bio-inspired fibrils.SOFT MATTER,8(38),9864-9869. |
| MLA | Peng ZL,et al."The effect of geometry on the adhesive behavior of bio-inspired fibrils".SOFT MATTER 8.38(2012):9864-9869. |
入库方式： OAI收割
来源：力学研究所
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