Title
Negentropy Generation and Fractality in the Dry Friction of Polished Surfaces
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.
Year
DOI
Venue
2010
10.3390/e12030480
ENTROPY
Keywords
Field
DocType
self-organization,entropy production,friction
Mathematical optimization,Negentropy,Exponential function,Fractal dimension,Honing,Entropy production,Mechanics,Probability distribution,Asperity (materials science),Steady state,Mathematics
Journal
Volume
Issue
ISSN
12
3
1099-4300
Citations 
PageRank 
References 
4
0.70
0
Authors
6
Name
Order
Citations
PageRank
Pablo Fleurquin151.40
Hugo Fort2154.57
Mordechai Kornbluth341.71
Roman Sandler440.70
Mordecai Segall540.70
Fredy Zypman651.78