Physics Journal
Articles Information
Physics Journal, Vol.1, No.3, Nov. 2015, Pub. Date: Oct. 19, 2015
Static Friction in Adhesive Contact of Rough Surfaces with Soft Coatings
Pages: 266-271 Views: 1753 Downloads: 808
Authors
[01] Prasanta Sahoo, Department of Mechanical Engineering, Jadavpur University, Kolkata, India.
Abstract
A numerical study of static friction in adhesive contact between rough surfaces with soft coating is presented using an elastic-plastic model of asperity contact deformation. The analysis considers the elastic and plastic deformation of both the coating and the substrate unlike the work available in literature where the coating is considered to be in pure plastic contact. The JKR (Johnson-Kendall-Roberts) adhesion model is used and the well-established adhesion indices (elastic and plastic adhesion indices) are utilized to consider the different conditions of varying load and material and surface properties of the substrate and the coating. Contact load and friction force are obtained as functions of mean separation between surfaces for different combinations of adhesion parameters, material properties and thickness of the coating. The effects of these parameters on frictional contact behavior of coated surfaces are investigated. For thin coating and light loading, frictional contact behavior is strongly influenced by the existence of soft coating that increases the contact area due to plastic deformation of the coating.
Keywords
Static Friction, Adhesion, Roughness, Soft Coatings
References
[01] Tabor, D. Friction-the present state of our understanding ASME: Journal of Lubrication Technology, 1981; 103: 169-79.
[02] Chang, W. R., Etsion, I., Bogy, D. B. Trans ASME: Journal of Tribology, 1988, 110, 57-63.
[03] Bowden, F. P, Tabor, D. The Friction and Lubrication of Solids, Clarendon Press, Oxford, 1950.
[04] Dayson, C. The friction of very thin solid film lubricants on surfaces of finite roughness, ASLE Trans., 1971, 14, 105-115.
[05] Sherbiney, M. A, Halling, J. Friction and wear of ion-plated soft metallic films, Wear, 1977, 45, 211-220.
[06] Finkin, E. F. A theory for the effects of film thickness and normal load in the friction of thin films, ASME J. Lubr. Technol., 1969, 91, 551-556.
[07] Halling, J. Surface Coatings, Tribol. Int., 1979, 203-208.
[08] Kato, S, Yamaguchi, K, Marui, E, Tachi, K. Friction properties of a surface covered with a soft metal film – part 2: analysis of friction between a single protuberance and a surface, ASME J. Lubr. Technol., 1982, 104, 39-45.
[09] Ogilvy, J. A. Predicting the friction and durability of MoS2 coatings using a numerical contact model, Wear, 1993, 160, 171-180.
[10] Chang, W. R. An elastic-plastic model for a rough surface with an ion-plated soft metallic coating, Wear, 1997,212, 229-237.
[11] Liu, Z, Neville, A, Reuben, R.L. Static friction modelling in the presence of soft thin metallic films, ASME J. of Tribol., 2002, 124, 27-35.
[12] Derjaguin, B.V., Muller, V.M, Toporov, Y. P. Effect of contact deformation on the adhesion of elastic solids, J. Colloidal Interface Sci., 1975, 53, 314-326.
[13] Roy Chowdhury, S. K, Ghosh, P. Adhesion and adhesional friction at the contact between solids. Wear, 1994, 174, 9-19.
[14] Johnson, K. L, Kendall, K, Roberts, A. D. Surface energy and the contact of elastic solids. Proc. R. Soc. Lond., 1971, A324, 301-313.
[15] Mohamed Ali, S., Sahoo, P. Elastic-Plastic adhesive contact of rough surfaces with soft coatins, Tribology for Equipment Reliability (Proc. ICIT 2004), Allied Pub., 191-198.
[16] Savkoor, A. K and Briggs, G. A. D. The effect of tangential force on the contact of elastic solids in adhesion, Proc.R.Soc., London, 1997, A356, 259-268.
[17] Hamilton,G. M. Explicit equation for the stresses beneath a sliding spherical contact, Proc, Inst.Mech.Eng., 1983, 197C, 53-59.
[18] Djabella, H., Arnell, R D. Finite element analysis of the contact stresses in elastic/substrate under normal and tangential load, Thin Solid films, 1993, 223, 87-97.
[19] Greenwood, J. A. and Wu, J. J., 2001, Surface roughness and contact: An apology, Meccanica, 36: 617–630.
[20] Hariri, A., Zu, J. W. and Ben Mrad, R. 2006, n-Point asperity model for contact between nominally flat surfaces, Trans. ASME J. Tribol. 128: 505-514.
[21] Hariri, A., Zu. J. W.,& Ben Mrad. R., 2006, Modeling of Elastic/Plastic Contact between Nominally Flat Rough Surfaces Using an n-Point Asperity Model, ASME Journal of Tribology, 128, 876-885.
[22] Sahoo, P., Mitra, A., & Saha, K. 2009, Elastic- Plastic Adhesive Contact of Rough Surfaces using n-Point Asperity Model, Journal of Physics. D, Applied Physics, 42(6), 1–13.
[23] Waghmare, A. K., & Sahoo, P. 2014, A Study of Elastic-Plastic Contact of Rough Surfaces using n-point asperity model, Procedia Material Science, 5, 1716–1725.
[24] Waghmare, A. K., & Sahoo, P., 2014, Elastic-plastic Adhesive Contact of Rough Surfaces Based on Accurate FEA study Using n-Point Asperity Model, International Journal of Surface Engineering and Interdisciplinary Material Science, 2(2), 1-22.
[25] Waghmare, A. K., & Sahoo, P. 2015, Adhesive Friction at the Contact between Rough Surfaces using n-Point Asperity Model, Engineering Science and Technology, an International Journal, 18, 463-474.
[26] Waghmare, A. K., & Sahoo, P., 2015, Adhesive Wear at the Contact between Rough Surfaces using n-Point Asperity Model, Proc. International Conference on Computing in Mechanical Engineering-2015. (in press).
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