Journal Article

PreJuSER-2770

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Contact mechanics: contact area and interfacial separation from small contact to full contact

Yang, C.FZJ* ; Persson, B. N. J.FZJ*

2008
IOP Publ. Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/22945  doi:10.1088/0953-8984/20/21/215214

Abstract: We present a molecular dynamics study of the contact between a rigid solid with a randomly rough surface and an elastic block with a flat surface. The numerical calculations mainly focus on the contact area and the interfacial separation from small contact (low load) to full contact (high load). For a small load the contact area varies linearly with the load and the interfacial separation depends logarithmically on the load. For a high load the contact area approaches the nominal contact area (i.e. complete contact), and the interfacial separation approaches zero. The numerical results have been compared with analytical theory and experimental results. They are in good agreement with each other. The present findings may be very important for soft solids, e. g. rubber, or for very smooth surfaces, where complete contact can be reached at moderately high loads without plastic deformation of the solids.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (IFF-1)

Research Program(s):

1. Kondensierte Materie (P54)

Appears in the scientific report 2008

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Database coverage:

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