Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Entropy 2010, 12(3), 480-489; doi:10.3390/e12030480
Article

Negentropy Generation and Fractality in the Dry Friction of Polished Surfaces

1, 1, 2, 2, 2 and 2,*
Received: 29 January 2010; in revised form: 24 February 2010 / Accepted: 8 March 2010 / Published: 11 March 2010
(This article belongs to the Special Issue Entropy and Friction Volume 2)
Download PDF [870 KB, uploaded 11 March 2010]
Abstract: We consider the Robin Hood model of dry friction to study entropy transfer during sliding. For the polished surface (steady state) we study the probability distribution of slips and find an exponential behavior for all the physically relevant asperity interaction-distance thresholds. In addition, we characterize the time evolution of the sample by its spatial fractal dimension and by its entropy content. Starting from an unpolished surface, the entropy decreases during the Robin Hood process, until it reaches a plateau; thereafter the system fluctuates above the critical height. This validates the notion that friction increases information in the neighborhood of the contacting surface at the expense of losing information in remote regions. We explain the practical relevance of these results for engineering surface processing such as honing.
Keywords: self-organization; entropy production; friction self-organization; entropy production; friction
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Fleurquin, P.; Fort, H.; Kornbluth, M.; Sandler, R.; Segall, M.; Zypman, F. Negentropy Generation and Fractality in the Dry Friction of Polished Surfaces. Entropy 2010, 12, 480-489.

AMA Style

Fleurquin P, Fort H, Kornbluth M, Sandler R, Segall M, Zypman F. Negentropy Generation and Fractality in the Dry Friction of Polished Surfaces. Entropy. 2010; 12(3):480-489.

Chicago/Turabian Style

Fleurquin, Pablo; Fort, Hugo; Kornbluth, Mordechai; Sandler, Roman; Segall, Mordecai; Zypman, Fredy. 2010. "Negentropy Generation and Fractality in the Dry Friction of Polished Surfaces." Entropy 12, no. 3: 480-489.


Entropy EISSN 1099-4300 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert