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A finite element (FE) model combining submodel technique is presented for the adhesive wear in elastic–plastic spherical contact. It consists of a global model, showing the potential location of fracture under combined normal and tangential loading, and a refined mesh submodel covering only the region near the potential fracture. This allows to describe the morphology of wear particle more accurately than that in a previously developed model by the authors. A range of normal loading is studied to show its effect on the shape and volume of wear particles. Two main regimes of mild and severe wear (along with a relatively narrow transition region between them) are found, which show almost linear and power-law dependency of wear rate on normal loading, respectively. Such behavior agrees with published experimental observations. However, the transition region is theoretically predicted here for the first time.


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An advanced efficient model for adhesive wear in elastic–plastic spherical contact

Show Author's information Haibo ZHANG1,2Izhak ETSION2( )
School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
Department of Mechanical Engineering, Technion, Haifa 32000, Israel

Abstract

A finite element (FE) model combining submodel technique is presented for the adhesive wear in elastic–plastic spherical contact. It consists of a global model, showing the potential location of fracture under combined normal and tangential loading, and a refined mesh submodel covering only the region near the potential fracture. This allows to describe the morphology of wear particle more accurately than that in a previously developed model by the authors. A range of normal loading is studied to show its effect on the shape and volume of wear particles. Two main regimes of mild and severe wear (along with a relatively narrow transition region between them) are found, which show almost linear and power-law dependency of wear rate on normal loading, respectively. Such behavior agrees with published experimental observations. However, the transition region is theoretically predicted here for the first time.

Keywords: adhesive wear, spherical contact, normal loading, power law

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Publication history

Received: 31 July 2021
Revised: 26 September 2021
Accepted: 02 November 2021
Published: 19 January 2022
Issue date: August 2022

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© The author(s) 2021.

Acknowledgements

The first author acknowledges the support from Technion Postdoctoral Fellowship and Beijing Institute of Technology Research Fund Program for Young Scholars.

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