A Study on Stress Analysis of Tire Tread Block

The deformation behavior of a tire tread rubber in contact with the roadway is complicated under the traction and breaking conditions. Because it is closely connected with running conditions and wear of tire, its proper analysis is difficult in theoretical and experimental method though many studies have been proceeded. In this paper, distributions of contact pressure and the shearing stress of a tread rubber block of truck tire subjected to compressive load P and lateral load Q are obtained. This analysis calculation predicts markedly different contact pressure distribution from those given previously by this analysis for a wide range of shape factor variation. Futher, we gave two kind of analysis by the energy method and the finite element method (ABAQUS code) on the contact pressure and the shearing stress of a tread block under P and Q. These analytical results are compared with each other and the previous ones and then show that the highest contact pressure remains moderate]y finite but not to be considerably large as predicted by the previous FEM analysis.