The background and necessity of application of numerical simulation method in research on friction materialsof automotive brake are analysed. The numerical analysis methods of conversion of braking energy, distribution offriction heat, transfer of friction heat and thermal mechanical coupling, are discussed. The dynamic temperature field andthermal stress field of the same brake disc and two kinds of friction plates of different materials, which are the compositematerials based on resin and the powder metallurgy based on copper, are simulated and analyzed respectively underemergency braking. The effect of friction materials’ performance on friction temperature and thermal stress distribution isobtained. The results show that the friction performance of composite materials based on resin is better than the powdermetallurgy based on copper. The results are consistent with the experimental results. The numerical simulation methodsproposed have a good predictive effect on the typical characteristics of friction materials in the process of braking, whichprovides effective references for preparation and optimization design of friction materials of brake.
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