A fractal expansion of a three dimensional elastic-plastic multi-scale rough surface contact model

被引：50

作者：

Goedecke, A. ^{[1
,3
]}

Jackson, R. L. ^{[2
]}

Mock, R. ^{[3
]}

机构：

[1] Johannes Kepler Univ Linz, Inst Tech Mech, A-4040 Linz, Austria

[2] Auburn Univ, Dept Mech Engn, Auburn, AL 36849 USA

[3] Siemens Corp Technol, Actuators & Control, D-81739 Munich, Germany

来源：

TRIBOLOGY INTERNATIONAL | 2013年 / 59卷

关键词：

Contact mechanics; Fractal; Rough surfaces; Analysis and models; RUBBER-FRICTION; FINITE-ELEMENT; MECHANICS;

D O I：

10.1016/j.triboint.2012.02.004

中图分类号：

TH [机械、仪表工业];

学科分类号：

120111 [工业工程];

摘要：

This work presents a fractal contact model for nominally flat rough surfaces and its analytical solution. Based on the non-statistical multi-scale model of Jackson and Streator, the model investigates the resolution-dependent contact area. A hierarchy of scales is constructed from a fractal surface description, based on the power spectral density of the surface roughness. In contrast to other fractal contact models, the concept of asperities is retained. Elasto-plastic deformation effects are included by virtue of an appropriate asperity model. The analytical solution yields a concise description of the resolution-dependent progression of fractal contact, decoupling the asperity physics from texture influence. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：230 / 239

页数：10

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