Investigation on the plasticity accumulation of Ti-6Al-4V fretting wear by decoupling the effects of wear and surface profile in finite element modelling

Mohd Tobi, A. L. and Sun, W. and Shipway, P. H. (2017) Investigation on the plasticity accumulation of Ti-6Al-4V fretting wear by decoupling the effects of wear and surface profile in finite element modelling. Tribology International, 113 . pp. 448-459. ISSN 0301679X

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Official URL: http://dx.doi.org/10.1016/j.triboint.2016.12.009

Abstract

A finite-element-based wear modelling methodology and a computational device for decoupling wear effects is presented in this study. The decoupling of wear effects facilitates the capture of plasticity accumulation on a particular wear-scarring profile after a specific number of cycles. It was determined that significant plasticity accumulation due to plastic shakedown was predicted in a partial-slip case, while a saturation of plastic deformation was predicted in a gross-sliding case. It was also predicted that a significant amount of plasticity does not meaningfully contribute to the stress and strain range observed in the contact region. It was assumed that plasticity accumulation contributes towards wear of the material and feeds the stress changes, which indirectly affects fatigue life.

Item Type:Article
Uncontrolled Keywords:Finite element; fretting wear; Ti-6Al-4V; plasticity
Subjects:T Technology > TS Manufactures > TS200-770 Metal manufactures. Metalworking
Divisions:Faculty of Engineering Technology > Department of Mechanical Engineering Technology
ID Code:10473
Deposited By:Mr. Mohammad Shaifulrip Ithnin
Deposited On:11 Oct 2018 11:39
Last Modified:11 Oct 2018 11:39

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