Original scientific paper

https://doi.org/10.21278/TOF.40201

Numerical and Experimental Analysis of a Frictionless Receding Contact between Cylindrical Indenter, Layer and Substrate

Branimir Rončević ; Faculty of Engineering, University of Rijeka, Rijeka, Croatia
Ante Bakić ; INETEC - Institute for Nuclear Energy, Lučko, Croatia
Janoš Kodvanj ; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Zagreb, Croatia

Abstract

This paper investigates the behaviour of a receding contact when a cylindrical indenter presses an unbonded layer resting on a substrate. The problem is analysed by using FEM within the scope of the linear theory of elasticity and under the assumption of plane strain. This paper presents new and original results in the analysis of influence of load intensity and indenter geometry on the contact parameters. In addition, in the investigation into material properties a reference analysis was carried out for the case of material similarity between all three bodies, and material properties were subsequently varied for each body. This class of problems shows nonlinear behaviour, with both contact pressure distributions and contact half-widths found to depend nonlinearly on the applied load. The experimental analysis was carried out by employing the digital image correlation method and the ARAMIS 4M system was used. The obtained measurement results show good agreement with the numerical results.

Keywords

receding contact problem; unbonded layer; FEM; digital image correlation

Hrčak ID:

161986

URI

https://hrcak.srce.hr/161986

Publication date:

18.7.2016.

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