Wear Modeling of Polyethylene Based Polymer for Lubricated Conditions

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Xu, Songbo^1 ; Tangpong, X.W.^2 ; Gong, Yinbing^3

Xi'An Institute of Optics and Precision Mechanics of CAS, Xi'an

710119, China^1

North Dakota State University, Fargo

ND

58108, United States^2

Chang'An University, Xi'an

710064, China^3

关键词: Biomedical applications;    Coefficient of frictions;    Normal loads;    Sliding velocities;    Theoretical modeling;    Time consumption;    Time duration;    Wear model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/3/032009/pdf
DOI  :  10.1088/1757-899X/394/3/032009

来源: IOP

【 摘 要 】

Generally, the wear test of HDPE or UHMWPE under lubricated conditions needs a long time duration to obtain a detectable wear loss, because of their low wear rates. In this paper, a theoretical model which couples elastohydrodynamic lubrication theory and Reye's wear model is proposed to predict the long term wear of HDPE under lubricated conditions. Dependency of the wear on parameters including viscosity of lubricants, sliding velocity, roughness, coefficient of friction, and normal load are determined. This model is expected to reduce the time consumption of the long term wear test and may provide a helpful support for the biomedical application of the polyethylene based polymer.