Adhesion tilt-tolerance in bio-inspired mushroom-shaped adhesive microstructure

Heepe, Lars, Carbone, Giuseppe, Pierro, Elena, Kovalev, Alexander E. and Gorb, Stanislav (2014) Adhesion tilt-tolerance in bio-inspired mushroom-shaped adhesive microstructure Applied Physics Letters, 104 (1).

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We studied experimentally and theoretically the effect of different tilt angles on the adhesion of mushroom-shaped adhesive microstructures. The marginal measured influence of tilting on pull-off forces is quantitatively well confirmed by numerical and theoretical calculations and was shown to be a direct consequence of an optimized stress distribution. In addition, the presence of a joint-like narrowing under the contact elements, as found in some biological attachment systems, was shown to further contribute to the tilt-tolerance. The results obtained allow us to explain the advantage of the widely observed mushroom-shaped contact geometry in nature for long-term and permanent adhesion. (C) 2014 AIP Publishing LLC.

Document Type: Article
Additional Information: Times Cited: 2 Carbone, Giuseppe/G-7816-2011 Carbone, Giuseppe/0000-0002-8919-6796 0 2
Research affiliation: Kiel University
OceanRep > The Future Ocean - Cluster of Excellence
Refereed: Yes
ISSN: 0003-6951
Projects: Future Ocean
Date Deposited: 30 Mar 2015 12:19
Last Modified: 03 Nov 2016 12:33

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