预循环应力对高速列车关键结构用铝合金材料疲劳裂纹扩展行为的影响
张啸尘,孟维迎(
),邹德芳,周鹏,石怀涛
),邹德芳,周鹏,石怀涛
Effect of Pre-Cyclic Stress on Fatigue Crack Propagation Behavior of Key Structural Al Alloy Materials Used in High Speed Trains
ZHANG Xiaochen,MENG Weiying(),ZOU Defang,ZHOU Peng,SHI Huaitao
),ZOU Defang,ZHOU Peng,SHI Huaitao
图1. 高速列车端部底架实物图和有限元数值分析及取样图
Fig.1. Photo of the chassis of high speed train (a) and finite element method (FEM) stress analysis and schematic diagram of sampling method (b) (1—sheet material, 2—anti-snake movement damper seat, 3—section bar, 4—draw beam)
