Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.2434
Publisher DOI: 10.3390/lubricants7100085
Title: A discussion on present theories of rubber friction, with particular reference to different possible choices of arbitrary roughness cutoff parameters
Language: English
Authors: Genovese, Andrea 
Farroni, Flavio 
Papangelo, Antonio 
Ciavarella, Michele 
Keywords: rubber friction; viscoelasticity; roughness
Issue Date: 26-Sep-2019
Publisher: Multidisciplinary Digital Publishing Institute
Source: Lubricants 7 (10): 85 (2019)
Abstract (english): 
Since the early study by Grosch in 1963 it has been known that rubber friction shows generally two maxima with respect to speed - the first one attributed to adhesion, and another at higher velocities attributed to viscoelastic losses. The theory of Klüppel and Heinrich and that of Persson suggests that viscoelastic losses crucially depend on the “multiscale” aspect of roughness and in particular on truncation at fine scales. In this study, we comment a little on both theories, giving some examples using Persson’s theory on the uncertainties involved in the truncation of the roughness spectrum. It is shown how different choices of Persson’s model parameters, for example the high-frequency cutoff, equally fit experimental data on viscoelastic friction, hence it is unclear how to rigorously separate the adhesive and the viscoelastic contributions from experiments.
URI: http://hdl.handle.net/11420/3547
DOI: 10.15480/882.2434
ISSN: 2075-4442
Journal: Lubricants 
Other Identifiers: doi: 10.3390/lubricants7100085
Institute: Strukturdynamik M-14 
Document Type: Article
Project: Azione I.2-D.D. n. 407 del 27/02/2018 
Untersuchung und Anwendung komplexer, nichtlinearer, dynamischer Zustände in reiberregten mechanischen Systemen 
More Funding information: Deutsche Forschungsgemenschaft (DFG)
Italian Ministry of Education, University and Research (MIUR) under theDepartments of Excellence
PON Ricerca e Innovazione 2014/2020
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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