Selection of Weld Structure of Bogies Based on Sub-Model

Abstract In order to effectively deal with the problems in allowable fatigue strength data of weld joints steering structures, it is necessary carry out comparative tests and analyses according various structural stress methods data. Therefore, on basis understanding applied standard bogie welded structure China, aiming at application present stage, this paper constructs diagram S-N curve Q345 seam based actual tested stress, starts result study.