FINITE ELEMENT ANALYSIS FOR SLIDING ABRASION OF TREAD BLOCKS OF RADIAL TIRE

The global finite element model of 205/55R16 radial tire with simple longitudinal and lateral tread patterns is constructed. The free rolling and braking processes are simulated using ABAQUS/Standard commercial code. The distribution of stick and slip areas of contact surface under free rolling and braking conditions is investigated. The numerical results indicate that large contact deformations could occur at the front part of tread blocks along the sliding direction. To obtain more accurate stress field and deformation characteristics, a refined meshed finite element model of local tread block is set up. The boundary conditions of local model are derived from the results of global model. Sliding behavior of the tread block is analyzed using ABAQUS/Explicit incorporating thermo-mechanical coupling. Large contact deformations including curling and self contact are presented. In the end, an abrasion process of tread block during the course of ABS (antilock brake system) braking is simulated and the irregular abrasion character along the circumference of tire is presented.