Title: Study the effect of wear rate on impingement failure of an acetabular liner surface based on finite element analysis

Authors: Eko Saputra; Iwan Budiwan Anwar; Emile Van Der Heide; Rifky Ismail; J. Jamari

Addresses: Laboratory for Surface Technology and Tribology, Faculty of Engineering Technology, University of Twente Drienerloolaan 5, P.O. Box 217, 7500 AE, Enschede, The Netherlands ' Laboratory for Surface Technology and Tribology, Faculty of Engineering Technology, University of Twente Drienerloolaan 5, P.O. Box 217, 7500 AE, Enschede, The Netherlands ' Laboratory for Surface Technology and Tribology, Faculty of Engineering Technology, University of Twente Drienerloolaan 5, P.O. Box 217, 7500 AE, Enschede, The Netherlands ' Laboratory for Engineering Design and Tribology, Department of Mechanical Engineering, Diponegoro University, Jl. Prof. Soedharto SH, Tembalang, Semarang 50275, Indonesia ' Laboratory for Engineering Design and Tribology, Department of Mechanical Engineering, Diponegoro University, Jl. Prof. Soedharto SH, Tembalang, Semarang 50275, Indonesia

Abstract: In this study, correlation of wear inside of an acetabular liner surface (ALS) and damage on an acetabular liner rim (ALR) due to impingement effect are investigated. The analysis included evaluation of the macrostructure of the damage based on visual investigation and computer simulation analysis. A commercial finite element method ABAQUS software package is used to simulate local impingement on the ALR due to wear depth variations (wear rates) inside the ALS. Here, the wear depth is based on the data of wear experiment from literature. The von Mises stress and contact deformation on the ALR at impingement is presented. In addition, the initial impingement angle is also presented to show the correlation between the wear inside of the ALS and the angle of impingement occurrence. The results show that the existence of wear inside of the ALS can increase the damage of the ALR due to impingement effect.

Keywords: acetabular liner; finite element analysis; impingement; wear rate.

DOI: 10.1504/IJMPT.2017.087033

International Journal of Materials and Product Technology, 2017 Vol.55 No.4, pp.340 - 353

Received: 19 Mar 2016
Accepted: 04 Jul 2016
Published online: 05 Oct 2017 *

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