A majority of tire makers make an effort to improve irregular wear that has a strong influence on tire performance. The standardized indoor wear tests or FE simulations are representative methods used to predict the tread wear performance. Especially, tread wear prediction method is developed using FE simulation that was more effective to reduce tire development time and cost.

In the previous paper^[1], tire tread wear was predicted by explicit FEM and compared with the indoor wear test results under a set of actual driving conditions. For the FE simulation, pressure dependent friction model, the selected wear rate equation and the simplified driving conditions were applied and the simulated wear results for the patterned tires were compared with the indoor wear test results. 

For the enhancement of tread wear prediction, pressure and slip dependent friction model is adopted in this study. And, 205/55R16 tire is used to determine the most appropriate friction model and wear rate equation. The selected friction model and wear equation is verified through alterations of size, loading severity, pattern, as well as velocity. In order to enhance the wear simulation efficiency, simplified 9 conditions that consider the driving condition frequency and weighting factors are selected to predict the indoor wear tests. As a result, the simulated wear shows good agreement with the indoor wear test.