Numerical Simulation of the Stress, Temperature & Wear Behaviours of the Drum Brake

Abstract

Thermo-mechanical coupling phenomena exist in the drum brake, which produces high contact stress field and transient temperature. Kinetic and Potential energies are applied and transformed into thermal energy and that thermal energy couples the different attributes such as stress, temperature, and wear. In this paper, the Archard abrasive wear model and Finite Element Method (FEM) are combined to simulate the normal braking condition of drum brake by means of the stress and wear coupled analysis method. Then based on stress, temperature and wear coupling method, the brake is simulated under emergency braking condition by using ABAQUS. UMESHMOTION subroutine is coded to realize the material loss. The process shows the contact pressure area, temperature field and wear abruption and their coupling process. Stress, temperature and wear are associated with expansion properties of a substance which are discussed in undeviating simulation results. Keywords-Wear; Drum brake; FEM; Heat flux; FEA.