Modelling of the frictional behaviour of the snake skin covered by anisotropic surface nanostructures.

Filippov, A. E. and Gorb, Stanislav (2016) Modelling of the frictional behaviour of the snake skin covered by anisotropic surface nanostructures. Scientific Reports, 6 . DOI 10.1038/srep23539.

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Abstract

Previous experimental data clearly revealed anisotropic friction on the ventral scale surface of snakes. However, it is known that frictional properties of the ventral surface of the snake skin range in a very broad range and the degree of anisotropy ranges as well to a quite strong extent. This might be due to the variety of species studied, diversity of approaches used for the friction characterization, and/or due to the variety of substrates used as a counterpart in the experiments. In order to understand the interactions between the nanostructure arrays of the ventral surface of the snake skin, this study was undertaken, which is aimed at numerical modeling of frictional properties of the structurally anisotropic surfaces in contact with various size of asperities. The model shows that frictional anisotropy appears on the snake skin only on the substrates with a characteristic range of roughness, which is less or comparable with dimensions of the skin microstructure. In other words, scale of the skin relief should reflect an adaptation to the particular range of surfaces asperities of the substrate.

Document Type: Article
Additional Information: Times Cited: 0 Filippov, Alexander E. Gorb, Stanislav N.
Keywords: Nanoscale biophysics, Structural properties
Research affiliation: Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.1038/srep23539
ISSN: 2045-2322
Projects: Future Ocean
Date Deposited: 14 Mar 2017 06:44
Last Modified: 22 May 2019 13:08
URI: http://oceanrep.geomar.de/id/eprint/36085

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