Please use this identifier to cite or link to this item: doi:10.22028/D291-27457
Title: A Green’s Function Molecular Dynamics Approach to the Mechanical Contact between Thin Elastic Sheets and Randomly Rough Surfaces
Author(s): Putignano, Carmine
Dapp, Wolf B.
Müser, Martin
Language: English
Title: Biomimetics
Volume: 1
Issue: 7
Publisher/Platform: MDPI
Year of Publication: 2016
DDC notations: 600 Technology
Publikation type: Journal Article
Abstract: Adhesion of biological systems is often made possible through thin elastic layers, such as human skin. To address the question of when a layer is sufficiently thin to become adhesive, we extended Green’s function molecular dynamics (GFMD) to account for the finite thickness of an elastic body that is supported by a fluid foundation. We observed that thin layers can much better accommodate rough counterfaces than thick structures. As a result, the contact area is enlarged, in particular, when the width of the layer w approaches or even falls below the short-wavelength cutoff λs of the surface spectra. In the latter case, the proportionality coefficient between area and load scales is (w/λs)3, which is consistent with Persson’s contact mechanics theory.
DOI of the first publication: 10.3390/biomimetics1010007
Link to this record: urn:nbn:de:bsz:291--ds-274578
ISSN: 2313-7673
Date of registration: 7-Jan-2020
Faculty: NT - Naturwissenschaftlich- Technische Fakultät
Department: NT - Materialwissenschaft und Werkstofftechnik
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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