IMECH-IR  > 非线性力学国家重点实验室
Tunable Adhesion of a Bio-Inspired Micropillar Arrayed Surface Actuated by a Magnetic Field
Li XJ(李兴济); Peng ZL(彭志龙); Yang YZ(杨亚政); Chen SH(陈少华)
Corresponding AuthorChen, Shaohua(chenshaohua72@hotmail.com)
Source PublicationJOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
2019
Volume86Issue:1Pages:11
ISSN0021-8936
AbstractBio-inspired functional surfaces attract many research interests due to the promising applications. In this paper, tunable adhesion of a bio-inspired micropillar arrayed surface actuated by a magnetic field is investigated theoretically in order to disclose the mechanical mechanism of changeable adhesion and the influencing factors. Each polydimethylsiloxane (PDMS) micropillar reinforced by uniformly distributed magnetic particles is assumed to be a cantilever beam. The beam's large elastic deformation is obtained under an externally magnetic field. Specially, the rotation angle of the pillar's end is predicted, which shows an essential effect on the changeable adhesion of the micropillar arrayed surface. The larger the strength of the applied magnetic field, the larger the rotation angle of the pillar's end will be, yielding a decreasing adhesion force of the micropillar arrayed surface. The difference of adhesion force tuned by the applied magnetic field can be a few orders of magnitude, which leads to controllable adhesion of such a micropillar arrayed surface. Influences of each pillar's cross section shape, size, intervals between neighboring pillars, and the distribution pattern on the adhesion force are further analyzed. The theoretical predictions are qualitatively well consistent with the experimental measurements. The present theoretical results should be helpful not only for the understanding of mechanical mechanism of tunable adhesion of micropillar arrayed surface under a magnetic field but also for further precise and optimal design of such an adhesion-controllable bio-inspired surface in future practical applications.
Keywordmicropillar arrayed surface magnetic field tunable adhesion mechanical mechanism large elastic deformation
DOI10.1115/1.4041550
Indexed BySCI ; EI
Language英语
WOS IDWOS:000469485600007
WOS KeywordBIOMIMETIC FIBRILLAR INTERFACES ; REVERSIBLE ADHESION ; GECKO ADHESION ; FRICTIONAL FORCES ; ASPECT RATIO ; MECHANICS ; CONTACT ; ATTACHMENT ; BIOMECHANICS ; DESIGN
WOS Research AreaMechanics
WOS SubjectMechanics
Funding ProjectBeijing Institute of Technology (The BIT Creative Research Plan) ; National Natural Science Foundation of China[11532013] ; National Natural Science Foundation of China[11672302] ; National Natural Science Foundation of China[11872114]
Funding OrganizationBeijing Institute of Technology (The BIT Creative Research Plan) ; National Natural Science Foundation of China
Classification一类/力学重要期刊
Ranking1
ContributorChen, Shaohua
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/80711
Collection非线性力学国家重点实验室
Recommended Citation
GB/T 7714
Li XJ,Peng ZL,Yang YZ,et al. Tunable Adhesion of a Bio-Inspired Micropillar Arrayed Surface Actuated by a Magnetic Field[J]. JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,2019,86(1):11.
APA 李兴济,彭志龙,杨亚政,&陈少华.(2019).Tunable Adhesion of a Bio-Inspired Micropillar Arrayed Surface Actuated by a Magnetic Field.JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME,86(1),11.
MLA 李兴济,et al."Tunable Adhesion of a Bio-Inspired Micropillar Arrayed Surface Actuated by a Magnetic Field".JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME 86.1(2019):11.
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