Abstract
The rail is worn away by severe stress exerted by passing wheels. The worn shape of the rail is greatly different depending on track sites because the contact condition of rail/wheel is changed depending on the sites. Prediction of the worn shape of the rail accurately is a benefit not only for evaluating the vehicle running stability according to change of the rail shape but also for predicting the micro-crack propagation. In this research, we conducted wear test using rail and wheel material specified by Japanese Industrial Standard (JIS) by changing slide condition and contact pressure. Then, we calculated a wear coefficient by applying Archard's wear law that is one of the wear prediction laws already established. Finally, we suggested a wear law considering the nonlinearity of wear by sliding.
