Micromechanics on Spherical Contact with Roughness
Authors:
- 1 May 2007
- journal article
- Published by Trans Tech Publications, Ltd. in Key Engineering Materials
- Vol. 339, 141-146
Abstract
Finite-element methods are used to study non-adhesive, frictionless rough contact of elastic and plastic solids. Roughness on the contact surfaces is realized by self-affine fractal. True contact area between spherical rough surfaces and flat rigid surfaces rises in power law as the external normal load increases. The power exponent is sensitive to surface roughness as well as the curvature of spherical geometry. Surface contact pressures are analyzed and compared for elastic and plastic solids. The distribution of local contact pressure is significantly dependent on the surface roughness and the yield stress of plastic solids.Keywords
This publication has 12 references indexed in Scilit:
- Finite-element analysis of contact between elastic self-affine surfacesPhysical Review E, 2004
- Elastoplastic Contact between Randomly Rough SurfacesPhysical Review Letters, 2001
- Shear stiffness of a solid–solid multicontact interfaceProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 1998
- EXPERIMENTAL OBSERVATIONS OF SELF-AFFINE SCALING AND KINETIC ROUGHENING AT SUB-MICRON LENGTHSCALESInternational Journal of Modern Physics B, 1995
- Direct observation of frictional contacts: New insights for state-dependent propertiesPure and Applied Geophysics, 1994
- Contact Mechanics1985
- Random Fractal Forgeries1985
- A unified theory of surface roughnessProceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1984
- The elastic contact of a rough surfaceWear, 1975
- Contact of nominally flat surfacesProceedings of the Royal Society of London. A. Mathematical and Physical Sciences, 1966