Normal contact of nominally flat rough surfaces is studied with an improved analytical model of asperity interaction. A finite element model of a representative model rough surface is created, and normal contact of this model is simulated to provide a basis of validation for the developed model. The developed model is also compared to an existing model in the literature and shown to correlate better with the finite element model. Furthermore, asperity spacing (density) is shown to be an important roughness parameter in determining the effects of asperity interaction in the load-interference response of the rough contact.
An Improved Model of Asperity Interaction in Normal Contact of Rough Surfaces
Urbana, IL, 61801
Manuscript received December 26, 2011; final manuscript received June 10, 2012; accepted manuscript posted July 16, 2012; published online November 19, 2012. Assoc. Editor: Marc Geers.
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Chandrasekar, S., Eriten, M., and Polycarpou, A. A. (November 19, 2012). "An Improved Model of Asperity Interaction in Normal Contact of Rough Surfaces." ASME. J. Appl. Mech. January 2013; 80(1): 011025. https://doi.org/10.1115/1.4007142
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