Micromechanics on Spherical Contact with Roughness

Abstract:

Article Preview

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.

Info:

Periodical:

Edited by:

Shen Dong and Yingxue Yao

Pages:

141-146

Citation:

J.S. Jeon et al., "Micromechanics on Spherical Contact with Roughness", Key Engineering Materials, Vol. 339, pp. 141-146, 2007

Online since:

May 2007

Export:

Price:

$38.00

[1] F. P. Bowden and D. Tabor: The Friction and Lubrication of Solids (Oxford, Clarendon Press 1986).

[2] J.A. Greenwood and J.B.P. Williamson: Proc. R. Soc. London, Ser. A, Vol. 295 (1966), p.300.

[3] J. A. Greenwood: Proc. R. Soc. London, Ser. A, Vol. 393 (1984), p.133.

[4] A. W. Bush, R. D. Gibson, and T. R. Thomas: Wear, Vol. 35 (1975), p.87.

[5] B. N. J. Persson: Phys. Rev. Lett, Vol. 87 (2001), p.116101.

[6] S. Hyun, L. Pei, J. F. Molinari and M. O. Robbins: Phys. Rev. E, Vol. 70 (2004) p.26117.

[7] K. L. Johnson: Contact Mechanics (New York, Cambridge University Press 1985).

[8] J. H. Dieterich and B. D. Kilgore: Pure Appl. Geophys, Vol. 143 (1994), p.283.

[9] J. Krim and G. Palasantzas: Int. J. Mod. Phys. B, Vol. 9 (1995), p.599.

[10] P. Berthoud and T. Baumberger: Proc. R. Soc. London, Ser. A, Vol. 454 (1998), p.1615.

[11] B. B. Mandelbrot: The Fractal Geometry of Nature (New York, Freeman 1979).

[12] R. F. Voss: Random fractal forgeries (Berlin, Springer-Verlag 1985), p.805.

[13] Information on http: /www. ABAQUS. com, product of HKS, Inc.

[14] T. Belytschko and T. J. R. Hughes: Computational Methods for Transient Analysis (Amsterdam, North-Holland 1983).

[15] L. Pei, S. Hyun, J. F. Molinari, and M. O. Robbins: J. Mech. Phys. Solids, Vol. 53 (2005), p.2385.

[16] B. Luan and M. O. Robbins: Nature, Vol. 435 (2005), p.929.

Fetching data from Crossref.
This may take some time to load.