著者

兼松 義一 松井 元英

出版者

一般社団法人日本機械学会

雑誌

鉄道技術連合シンポジウム(J-Rail)講演論文集

巻号頁・発行日

vol.2015, no.22, pp."2202-1"-"2202-2", 2015-12-08

---

The railway rails occurs expansion and contraction by thermal expansion in accordance with the variation of the ambient temperature. Therefore, a substantial amount will be accumulated in the rail should be expansion and contraction. This thermal stress is generally referred to as the rail axial force. In this study, the lab test using the rail bending fatigue test machine was executed and the rail axis force evaluation X-ray stress measurement by cosα method was fundamentally investigated.