Stress numerical simulation and thermal fatigue life prediction for SiCp_A356 composite material brake disc

Abstract

The experiments on the constitutive law and low-cycle fatigue life of SiCp_A356 composite material are carried out under room and elevated temperatures. Transient temperature field and stress-strain field of SiCp_A356 compos-ite material brake disc during the emergency brake are simu-lated and the thermal fatigue life prediction method is studied. The thermal elasto-plastic finite element model is presented to simulate the multilinear kinematic hardening stress-strain rela-tionship. The fatigue and creep damage analysis and life pre-diction model about the brake disc are presented relative to the load features, which will provide reference on design and ap-plication of high-speed rolling stock brake disc .