Design of bio-inspired fibrillar interfaces for contact and adhesion — theory and experiments

Authors: Hui, Chung-Yuen¹; Jagota, Anand²; Shen, Lulin¹; Rajan, Ajita²; Glassmaker, Nicholas³; Tang, Tian⁴

Source: Journal of Adhesion Science and Technology, Volume 21, Numbers 12-13, 2007 , pp. 1259-1280(22)

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Abstract:

Geckos can adhere upside down on a horizontal surface and yet can climb rapidly on most vertical walls. This feat is accomplished using a hierarchical fibrillar interface. This paper reviews design principles of synthetic fibrillar interfaces that mimic surface structures in lizards and insects designed for enhanced contact and adhesion. In addition, we will address the role that statistics plays in quantifying fibrillar adhesion.

Keywords: ADHESION; LOCAL LOAD SHARING; GLOBAL LOAD SHARING; COMPLIANCE; BUCKLING; STATISTICS OF PILLAR BUNDLES

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156856107782328362

Affiliations: 1: Department of Theoretical and Applied Mechanics, Cornell University, Ithaca, NY 14853, USA 2: Department of Chemical Engineering, Lehigh University, Bethlehem, PA 18015, USA 3: Laboratoire PPMD, ESPCI, 10 Rue Vauquelin, 75231 Paris Cédex 05, France 4: Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, T6J 7G2 Canada

Publication date: 2007-10-01