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http://dx.doi.org/10.9725/kts.2020.36.5.262

A Comparative Study on Eigen-Wear Analysis and Numerical Analysis using Algorithm for Adaptive Meshing  

Jang, Ilkwang (Dept. of Mechanical Engineering, Yonsei University)
Jang, Yong Hoon (Dept. of Mechanical Engineering, Yonsei University)
Publication Information
Tribology and Lubricants / v.36, no.5, 2020 , pp. 262-266 More about this Journal
Abstract
Herein, we present a numerical investigation of wear analysis of sliding systems with a constant speed subjected to Archard's wear law. For this investigation, we compared two methods: eigen-wear analysis and adaptive meshing technique. The eigen-wear analysis is advantageous to predict the evolution of contact pressure due to wear using the initial contact pressure and contact stiffness. The adaptive meshing technique in finite element analysis is employed to obtain transient wear behavior, which needs significant computational resources. From the eigen-wear analysis, we can determine the appropriate element size required for finite element analysis and the time increment required for wear evolution by a dimensionless variable above a certain value. Since the prediction of wear depends on the maximum contact pressure, the finite element model should have a reasonable representation of the maximum contact pressure. The maximum contact pressure and wear amount according to this dimensionless variable shows that the number of fine meshes in the contact area contributes more to the accuracy of the wear analysis, and the time increment is less sensitive when the number of contact nodes is significantly larger. The results derived from a two-dimensional wear model can be applied to a three-dimensional wear model.
Keywords
daptive-lagrange euler meshing; archard wear model; eigenanalysis; finite element analysis; wear analysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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