NONLINEAR FE ANALYSIS FOR RUBBER COMPOSITE STRUCTURES

In this paper rolling tires——a typical rubber composite structure was analyzed by nonlinear FEM using several new techniques. The boundary value problem and FE modeling of rolling tires were presented. Also their solving scheme was developed. Taking spinning configuration as reference one, time can be eliminated out from inertial fields and governing equations. Rolling contact problem was handled by increment constraint method with tire contact friction force and vertical pressure between tire and roadway developed. The effect of operational condition on total and local displacement and load is studied. The computed results agree with data and experiments available, which shows the methods in this paper are reasonable.