Analysis of Two Surfaces under Viscoelastic Contact

Abstract:

This paper presents the analysis of the contact surfaces between a rigid cylinder and a soft plate for viscoelastic material. The contact pressure and deformation of the plate in contact region were determined using finite element technique. Moreover, the characteristics of two surfaces of cylindrical roller and plate under elastohydrodynamic lubrication with nonNewtonian fluid were examined using finite difference technique with full adaptive multigrid method . In this study the simulation of viscoelastic material in contact was under taken to determine the effects of material behaviors on the deformation of plate compared to the elastic materials. The results indicated that the deformation shapes were nonlinearly dependent with the applied loads. Furthermore, the deformation of elastic material would reach a certain value in a period of time whereas the deformation of viscoelastic material was increased inconsistently with time. The film pressure and film thickness profiles in the contact regime were investigated at various loads. The minimum film thickness occurs near the trailing edge of contact region and becomes very small under heavy loads.

• Periodical: Advanced Materials Research (Volume 818)
• Pages: 77-82
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.818.77
• Online since: September 2013
• Authors: M. Mongkolwongrojn, J. Panichakorn, S. Supawanich, S. Chutima
• Keywords: Contact Mechanic, EHL, Non-Newtonian Viscosity Model, Viscoelastic Material

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