A simplified analysis of 2D sliding frictional contact between rigid indenters and FGM coated substrates. (April 2017)

• Record Type: Journal Article
• Authors: Jobin, K.J.; Abhilash, M.N.; Murthy, H.
• Is Part Of: Tribology international. Volume 108(2017)
• Page Start: 174
• Page End: 185
• Publication Date: 2017-04
• Subjects: Contact mechanics -- Functionally graded materials -- Friction -- Singular integral equation; Tribology -- Periodicals; 621.89
• DOI: 10.1016/j.triboint.2016.09.021
• Languages: English
• ISSNs: 0301-679X

Abstract

Abstract: Numerical analysis of functionally graded material (FGM) coated surface in two-dimensional frictional contact with arbitrary shaped rigid stamp is presented. Loads are applied such that the stamp is fully sliding. Pressure distribution at the interface for arbitrary profile is expressed as a modified cosine series. Due to its ability to analyze arbitrary shaped contacts, it can be a powerful design tool for evaluating contact response due to different shapes and sizes of indenter. A multi-layer model of FGM coating with piecewise constant approximation for Young's modulus variation is used. Simplifications have been suggested in the formulation to aid numerical evaluation of the resulting integrals. The method is demonstrated for symmetric and unsymmetric profiles and compared with results from literature. Abstract : Highlights: Simplified analysis has been developed to analyze 2D contacts involving FGM. Analysis is capable of obtaining contact tractions for arbitrary indenter profiles. Results of the analysis have been validated with analytical solutions and FEA. Analysis can be extended to contacts involving deformable indenters.