Abstract
The damage that occurs around the tire bead region is one of the critical failure forms of a tire. Generally, the prediction of tire durability is carried out by the experimental method. However, it takes a lot of money and time to conduct experiments. Therefore, to determine the fatigue life of radial tire bead, a reasonable prediction method is proposed in this paper. Fatigue testing of bead rubber compounds to determine the ΔSED-number of the cycle (Nf) was applied. The maximum strain energy density range (ΔSEDmax) of several bead compounds was obtained by steady-state rolling analysis with a finite element method. This quantity is then inserted into a fatigue life equation to estimate the fatigue life. The experimental results of the 175/75R14 tire were compared with the estimated value, which showed a good correlation. It is concluded that the method can be effectively applied to the fatigue life prediction of the tire bead.
Highlights
Radial Tire Bead Using a MaximumAs the only contact component between a vehicle and the road, the tire has an important influence on the operating characteristics of a vehicle
As the energy crisis has increasingly become a global issue, tire durability problems have been magnified in the tire industry [1]
The aim of this paper is to propose a method that applies the finite element method and the fatigue life equation of bead rubber compounds to predict the fatigue life of indoor durability testing of tires
Summary
As the only contact component between a vehicle and the road, the tire has an important influence on the operating characteristics of a vehicle. The durability of tire performance is one of the most important indicators for evaluating vehicle safety performance. If the tires have premature fatigue failure from market feedback, it will affect the reputation and economic benefits of tire manufacturers. As the energy crisis has increasingly become a global issue, tire durability problems have been magnified in the tire industry [1]. A method to evaluate the durability of a tire is of great importance. The finite element analysis method to predict tire performance has been used widely
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