Modeling of frictional interaction of a rough indenter and a two-layer elastic half-space

Effect of a hard sublayer on contact interaction and wear behavior of electrodeposited gold-based coatings

“…Therefore, the coatings deposited on the Ni-B sublayer are assumed to be intensively strain hardened that provides for their plastic resistance under multipass scratching. Wear of the Au-Ni coatings on conditions of dry friction is caused by their macroscopic elastoplastic deformation due to the action of the rider, interaction of microasperities on the friction pair surfaces as well as adhesive interaction [9][10][11]. Contact interaction between a hard rider and a rather soft coating under the only applied normal force is considered in terms of the classical Hertzian contact theory.…”

Study of roughness effect on elastic indentation of coated bodies

“…In this paper, an approach to take into account the coating roughness is presented; approximate method of two-level contact problem solution is developed and used to analyze the influence of microscale parameters, such as the distance between asperities and their curvature, on the contact problem solution and the penetration of the counter body. The study is based on the previous results, which were obtained by the author, 6,11 and the localization principle formulated by Goryacheva 9 for a periodic system of asperities.…”

“…The same models of discrete contact were used to solve two-level contact problem, when the roughness of the counter body was taken into account in macrocontact problem solution. 6,7 It has been obtained that the layer of asperities may influence essentially on the contact pressure distribution; the layer of asperities has a compliance, which depends on a nominal pressure, and the pressure also depends on the compliance. The mutual effect for uncoated elastic solids was studied earlier by Goryacheva; 8,9 some results for 2D two-level contact problem was also obtained by Rajendrakumar and Biswas.…”

Contact of Multi-Level Periodic System of Indenters With Coated Elastic Half-Space

“…The discrete contact problems for the coated elastic bodies were studied both for normal and sliding contacts in [6][7][8][9]. The coating thickness related to geometrical parameters of roughness is specific characteristic, which influences contact and internal stress distributions.…”

“…Periodic one-level system of spherical indenters penetrating into the two-layered elastic half-space was considered in [6]; 2-D contact problem for a measured profile of counterbody was solved in [7]. The same models of discrete contact were used to take into account roughness in 3D macro contact problem solution [8,9]; in both studies friction is also considered. For thick coatings some results from [2], which are mostly analytical, can be used for verification of semi analytical and numerical solutions of the similar counter body microgeometry.…”