Journal of Nanoscience and Nanoengineering
Articles Information
Journal of Nanoscience and Nanoengineering, Vol.1, No.4, Dec. 2015, Pub. Date: Oct. 19, 2015
Nano-Scale Effect in Adhesive Friction of Sliding Rough Surfaces
Pages: 206-213 Views: 1495 Downloads: 789
[01] Prasanta Sahoo, Department of Mechanical Engineering, Jadavpur University, Kolkata, India.
Study of contact and friction at multiple length scales is necessary for the effective design and analysis of surfaces in sliding micro- and nano-electromechanical systems (MEMS/NEMS). As loading forces decrease in such applications, the size of the asperity contacts tends to decrease into the nano scale regime. Also with the increase in surface area to volume ratio in such systems, the surface force or adhesion becomes more prominent in contributing to surface interaction effects. Since the friction force depends on the real area of contact, which is strongly influenced by the presence of surface forces and surface roughness, it is important to analyze the effect of adhesion and roughness on the frictional behavior of small scale sliding systems. In the present study, the Hurtado and Kim model for the behavior of the friction stress is incorporated into the multi-asperity adhesive contact model of Roy Chowdhury and Ghosh which includes the asperity adhesion forces using the Johnson-Kendall-Roberts adhesion model. The well-established elastic adhesion index along with the plasticity index is used to consider the different conditions that arise as a result of varying load, material parameters and contact size. Results are obtained as the variation of coefficient of friction versus normal load for different combinations of the controlling parameters. It is found that the nano-scale effect in multi-asperity contacts is dominant for low values of adhesion index, small normal load and elastic contact conditions.
Adhesive Friction, Roughness, Scale Effect
[01] Hertz, H.J., 1881, ReineAngew. Math., 92:156.
[02] Johnson, K.L., 1985, Contact Mechanics, Univ. Press, Cambridge.
[03] Johnson, K. L., Kendall, K., and Roberts, A. D., 1971, ‘‘Surface Energy and the Contact of Elastic Solids,’’ Proc. R. Soc. London, A324: 301– 313.
[04] Dowson, D., 1979, History of Tribology, Longman, London.
[05] Chang, W.R., Etsion, I., and D. B. Bogy, 1988, “Adhesion Model for Metallic Rough Surfaces”, Trans. ASME, J. Tribology, 110: 50-56.
[06] Greenwood, J. A., and Williamson, J. B. P., 1966, ‘‘Contact of Nominally Flat Surfaces,’’ Proc. R. Soc. London, A295: 300–319.
[07] Derjaguin, B. V., Muller, V. M., and Toporov, Y. P., 1975, ‘‘Effect of Contact Deformations on the Adhesion of Particles,’’ J. Colloid Interface Sci.,53: 314–326.
[08] Tabor, D., 1976, ‘‘Surface Forces and Surface Interactions,’’ J. Colloid Interface Sci., 58: 2–13.
[09] Maugis, D., 1992, ‘‘Adhesion of Spheres: The JKR-DMT Transition Using a Dugdale Model,’’ J. Colloid Interface Sci., 150: 243–269.
[10] Chang, R. W., Etsion, I., and Bogy, D. B., 1987, ‘‘An Elastic-Plastic Model for the Contact of Rough Surfaces,’’ ASME J. Tribol.,109: 257–263.
[11] Chang, W. R., Etsion, I. and Bogy, D. B., 1988, “Static Friction Coefficient Model for Metallic Rough Surfaces”. Trans. ASME, J. Tribology, 110: 57-63.
[12] Fuller, K. N. G., and Tabor, D., 1975, ‘‘The Effect of Surface Roughness on the Adhesion of Elastic Solids,’’ Proc. R. Soc. London, A345: 327– 342.
[13] Roy Chowdhury, S. K. and Ghosh, P., 1994, “Adhesion and Adhesional Friction at the Contact between Solids”. Wear, 174: 9-19.
[14] Maugis, D., 1996, ‘‘On the Contact and Adhesion of Rough Surfaces,’’ J. Adhes. Sci. Technol., 10: 161–175.
[15] Carpick, R. W., Agrait, N., Ogletree, D. F. and Salmeron, M., 1996, “Measurement of Interfacial Shear (friction) with an Ultrahigh Vacuum Atomic Force Microscope”. J. Vac. Sci. Technol. B, 14: 1289-1295.
[16] Homola, A. M., Israelachvili, J. N., McGuiggan, P. M. and Gee, M. L., 1990, “Fundamental Experimental studies in Tribology: the Transition from ‘Interfacial’ Friction of Undamaged Molecularly Smooth Surfaces to ‘Normal’ Friction with wear”. Wear, 136: 65-83.
[17] Hurtado, J. A., and Kim, K.-S., 1999, ‘‘Scale Effects in Friction of Single Asperity Contacts: Part I; From Concurrent Slip to Single-Dislocation-Assisted Slip,’’ Proc. R. Soc. London, A455: 3363–3384.
[18] Hurtado, J. A., and Kim, K.-S., 1999, ‘‘Scale Effects in Friction in Single Asperity Contacts: Part II; Multiple-Dislocation-Cooperated Slip,’’ Proc. R. Soc. London, A455: 3385–3400.
[19] Adams, G. G., Muftu, S. and MohdAzhar, N., 2003, “A Scale-Dependent Model for Multi-Asperity Contact and Friction”, Trans. ASME: J. Tribology, 125: 700-708.
[20] Greenwood, J. A. and Wu, J. J., 2001,“Surface roughness and contact: An apology”, Meccanica, 36: 617–630.
[21] 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.
[22] 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.
[23] 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.
[24] 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.
[25] 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.
[26] 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.
[27] 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).
MA 02210, USA
AIS is an academia-oriented and non-commercial institute aiming at providing users with a way to quickly and easily get the academic and scientific information.
Copyright © 2014 - 2017 American Institute of Science except certain content provided by third parties.