@inproceedings{7ba4a3d70d804095a1ce30d91e0581c8,
title = "Computing the friction coefficient of fractal surfaces using SPOLY",
abstract = "The relationship between morphological parameters and resultant frictional forces of fractal surfaces is determined using discrete element method (DEM) modelling. Surface profiles were constructed in the form of the Koch Curves. For validation purposes, two approaches are employed to obtain the static friction coefficient using the in-house developed DEM software SPOLY that models objects in 2D using polygon elements. Computational analysis of frictional interactions consistently showed a dependence of frictional forces on Koch-curve parameters of unit-slope (α) and number of iterations, representing surface slope and fractality-extent respectively. Static friction was observed to increase both with the slope of the triangular elements of the Koch curve and with the number of iterations. The effect of increasing the magnitude of molecular-scale frictional interactions in the simulations was more prominent for cases involving low roughness values. The dependency of frictional forces on the length of the simulated Koch-curve surfaces is not determined to be significant.",
keywords = "Fractal surfaces, Friction, Koch curve, SPOLY, Surface roughness, Unit-slope",
author = "Pengyu Huang and Gw{\'e}na{\"e}lle Proust and Fernando Alonso-Marroquin and Flores-Johnson, \{E. A.\} and Yixiang Gan and Luming Shen and Hanaor, \{Dorian A.H.\}",
year = "2014",
month = nov,
day = "1",
language = "English",
series = "8th Australasian Congress on Applied Mechanics, ACAM 2014, as Part of Engineers Australia Convention 2014",
publisher = "Engineers Australia",
pages = "818--825",
editor = "Raj Das and Sabu John",
booktitle = "8th Australasian Congress on Applied Mechanics, ACAM 2014, as Part of Engineers Australia Convention 2014",
note = "8th Australasian Congress on Applied Mechanics, ACAM 2014, as Part of Engineers Australia Convention 2014 ; Conference date: 25-11-2014 Through 26-11-2014",
}