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

Autor:	Robert L. Jackson, Randolf Mock, Andreas Goedecke
Rok vydání:	2013
Předmět:	Surface (mathematics) Materials science Deformation (mechanics) Scale (ratio) Mechanical Engineering Geometry Surfaces and Interfaces Surfaces Coatings and Films Fractal Contact mechanics Mechanics of Materials Surface roughness Contact area Asperity (materials science)
Zdroj:	Tribology International. 59:230-239
ISSN:	0301-679X
DOI:	10.1016/j.triboint.2012.02.004
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e3be7b6e09b1a94ca323ba27976de3f https://doi.org/10.1016/j.triboint.2012.02.004 Zobrazit plný text záznamu Full Text from ScienceDirect