Journal Article

PreJuSER-22343

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Adhesion between elastic solids with randomly rough surfaces: Comparison of analytical theory with molecular-dynamics simulations

Mulakaluri, N.FZJ* ; Persson, B. N. J.FZJ*

2012
EDP Sciences Les Ulis

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Please use a persistent id in citations: http://hdl.handle.net/2128/22960  doi:10.1209/0295-5075/96/66003

Abstract: The adhesive contact between elastic solids with randomly rough, self-affine fractal surfaces is studied by molecular-dynamics (MD) simulations. The interfacial binding energy obtained from the simulations of nominally flat and curved surfaces is compared with the predictions of the contact mechanics theory by Persson. Theoretical and simulation results agree rather well, and most of the differences observed can be attributed to finite-size effects and to the long-range nature of the interaction between the atoms in the block and the substrate in the MD model, as compared to the analytical theory which is for an infinite system with interfacial contact interaction. For curved surfaces (JKR type of problem) the effective interfacial energy exhibit a weak hysteresis which may be due to the influence of local irreversible detachment processes in the vicinity of the opening crack tip during pull-off. Copyright (C) EPLA, 2011

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Quanten-Theorie der Materialien (PGI-1)
2. Quanten-Theorie der Materialien (IAS-1)

Research Program(s):

1. Grundlagen für zukünftige Informationstechnologien (P42)

Appears in the scientific report 2012

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Database coverage:
; ; Current Contents - Social and Behavioral Sciences ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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