Dynamically induced friction reduction in micro-structured interfaces
File(s)
Published version
Author(s)
Menga, N
Bottiglione, F
Carbone, G
Type
Journal Article
Abstract
We investigate the dynamic behavior of a regular array of in-plane elastic supports interposed between a sliding rigid body and a rigid substrate. Each support is modelled as a mass connected to a fixed pivot by means of radial and tangential elastic elements. Frictional interactions are considered at the interface between the supports and the sliding body. Depending on the specific elastic properties of the supports, different dynamic regimes can be achieved, which, in turn, affect the system frictional behavior. Specifically, due to transverse microscopic vibration of the supports, a lower friction force opposing the macroscopic motion of the rigid body can be achieved compared to the case where no supports are present and rubbing occurs with the substrate. Furthermore, we found that the supports static orientation plays a key role in determining the frictional interactions, thus offering the chance to specifically design the array aiming at controlling the resulting interfacial friction force.
Date Issued
2021-12
Date Acceptance
2021-03-19
Citation
Scientific Reports, 2021, 11 (1), pp.1-12
ISSN
2045-2322
Publisher
Nature Publishing Group
Start Page
1
End Page
12
Journal / Book Title
Scientific Reports
Volume
11
Issue
1
Copyright Statement
© The Author(s) 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
License URL
Sponsor
Commission of the European Communities
Identifier
https://www.nature.com/articles/s41598-021-87484-5
Grant Number
845756
Publication Status
Published
Article Number
8094
Date Publish Online
2021-04-14