[G] Fundamentals of Mechanical Properties(1)

2:30 PM - 3:00 PM JST(5:30 AM - 6:00 AM UTC)

[146] ［Meritorious Award］Subsurface Crack Propagation from Internal Defect in Rolling Contact Fatigue of Railway Wheel Steel

*Takanori Kato¹, Takashi Fujimura², Shinichiro Hiramatsu¹ (1. Nippon Steel, 2. Nippon Steel(Present: Standard Steel))

Keywords:

転動疲労,鉄道車輪,内部欠陥

鉄道車輪における内部欠陥を起点とした転動疲労損傷を対象に，人工欠陥を有する試験片の転動疲労試験，FEM解析を行い，き裂進展特性を明らかにした．