Tribology across Scales

A special issue of Lubricants (ISSN 2075-4442).

Deadline for manuscript submissions: closed (31 October 2020) | Viewed by 3373

Special Issue Editor


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Guest Editor
Engineering Department, Aarhus University, Inge Lehmanns Gade 10, 8000 Aarhus C, Denmark
Interests: computational tribology; solid mechanics; friction and wear mechanisms; surface mechanics; fracture and plasticity

Special Issue Information

Dear colleagues,

Material surfaces are rough at all magnifications, ranging from atomistic to macroscopic scales. As a result, tribological phenomena including contact, friction, lubrication, and wear emerge from a wide range of chemical and physical processes at disparate length scales. The development of advanced experimental and computational techniques over past years has enabled the investigation of tribological phenomena at nanometer, micrometer, as well as macroscopic wavelengths. 

This Special Issue is aimed at further improving our understanding of the intertwined multiscale nature of tribological phenomena, both in the modeling and experimental domains. This includes the breakdown of continuum theories at the nano-and microscales, multiscale features for experiments, as well as analytical and computational models, relevant to applications spanning a variety of sectors, from automotive to biotribology and nanotechnology.

Prof. Dr. Ramin Aghababaei
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Lubricants is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Friction, lubrication, and wear mechanisms across scales
  • Multiscale modeling and experiments in tribology
  • Contact models across scales
  • Nanotribology
  • Scale-dependent tribological properties

Published Papers (1 paper)

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Research

25 pages, 3974 KiB  
Article
Particle Entrapment in Line Elastohydrodynamic Contacts and the Influence of Intermolecular (van der Waals) Forces
by George K. Nikas
Lubricants 2020, 8(5), 60; https://doi.org/10.3390/lubricants8050060 - 25 May 2020
Cited by 1 | Viewed by 3033
Abstract
A metallic particle passing through concentrated rolling-sliding contacts is often linked to surface damage for particles larger than the available gap. At the instant of particle pinching, force balancing dictates particle entrapment and passing through the contact or rejection. It is vital to [...] Read more.
A metallic particle passing through concentrated rolling-sliding contacts is often linked to surface damage for particles larger than the available gap. At the instant of particle pinching, force balancing dictates particle entrapment and passing through the contact or rejection. It is vital to include all major forces in this process. This study revisits the analytical entrapment model previously published by the author for spherical micro-particles by incorporating a force so far overlooked in related studies, namely the van der Waals intermolecular force and, additionally, surface roughness effects. In conjunction with particle mechanical and fluid forces, this provides an almost complete set to use for correct force balancing. A parametric analysis shows the effect of several geometrical, mechanical, rheological, and surface parameters on spherical particle entrapment and reveals the significance of the van der Waals force for particles smaller than about 5–10 μm in diameter. Full article
(This article belongs to the Special Issue Tribology across Scales)
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