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Contact mechanics for randomly rough surfaces
- Source :
- Surface science reports 61, 201-227 (2006). doi:10.1016/j.surfrep.2006.04.001
- Publication Year :
- 2006
- Publisher :
- Elsevier Science, 2006.
-
Abstract
- When two solids are squeezed together they will in general not make atomic contact everywhere within the nominal (or apparent) contact area. This fact has huge practical implications and must be considered in many technological applications. In this paper I briefly review basic theories of contact mechanics. I consider in detail a recently developed contact mechanics theory. I derive boundary conditions for the stress probability distribution function for elastic, elastoplastic and adhesive contact between solids and present numerical results illustrating some aspects of the theory. I analyze contact problems for very smooth polymer (PMMA) and Pyrex glass surfaces prepared by cooling liquids of glassy materials from above the glass transition temperature. I show that the surface roughness which results from the frozen capillary waves can have a large influence on the contact between the solids. The analysis suggest a new explanation for puzzling experimental results [L. Bureau, T. Baumberger and C. Caroli, arXiv:cond-mat/0510232] about the dependence of the frictional shear stress on the load for contact between a glassy polymer lens and flat substrates. I discuss the possibility of testing the theory using numerical methods, e.g., finite element calculations.<br />Comment: Review paper, 29 pages, 31 pictures
- Subjects :
- Capillary wave
Materials science
Numerical analysis
Metals and Alloys
FOS: Physical sciences
Surfaces and Interfaces
General Chemistry
Mechanics
Condensed Matter - Soft Condensed Matter
Condensed Matter Physics
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
Condensed Matter::Soft Condensed Matter
Stress (mechanics)
Contact mechanics
Materials Chemistry
Surface roughness
Shear stress
ddc:330
Soft Condensed Matter (cond-mat.soft)
Boundary value problem
Contact area
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Surface science reports 61, 201-227 (2006). doi:10.1016/j.surfrep.2006.04.001
- Accession number :
- edsair.doi.dedup.....f7af11878b5706fa6c6c2ce7fd867b40