Analysis of Cord Stress During Tire Dynamic Longitudinal Slip

Abstract

Abstract Select 215/55 R17 radial tires for material test to obtain relevant material parameters. Use these parameters to build a finite element model and conduct longitudinal slip simulation. The relationship between longitudinal force and slip rate at different speeds and loads was determined by tire longitudinal slip tests. Then the longitudinal slip simulation results are compared with the test results to verify the feasibility of the model. The circumferential and axial Rebarforce of the belt layer at different speeds and the extreme value of the circumferential Rebarforce on the reverse-envelope of different skeleton materials are analyzed. The results show that: in the static state, the cord force of the belt layer will show a trend consistent with the direction of the cord arrangement. As the speed increases, the belt cord force exhibits significant fluctuations and asymmetry. The Rebarforce of the turn-up points on the belt and ply is significantly smaller compared to the fetal crown ply. The Rebarforce at the fetal crown and belt wrapping points at 60km/h is smaller than at 40km/h and 80km/h. The cord force of the fetal crown ply and the belt ply is much more affected by the load than that of the ply.