Study on rolling contact fatigue of rails using potable X-ray stress instrument
| Project/Area Number |
25420085
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Design engineering/Machine functional elements/Tribology
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| Research Institution | Kanazawa University |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 残留応力 / X線回折 / デバイリング / 三軸応力 / 転動接触疲労 / 鉄道レール / 転がり疲労 / シェリング / き裂 / X線 / 回折環 / 白色層 / 鉄道 / レール / イメージングプレート / 回折 |
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| Outline of Final Research Achievements |
Rolling contact fatigue on the surface of rails due to railway wheel was sutudied using X-ray stress measurement method. Tri-axial stress analysis was conducted with a new stress analysis theory, so-called cosa method by detecting Debye-Scherrer ring with a two-dimensional X-ray detector and CrKa characteristic X-ray from irradiated area. As a result, it was found that tri-axial stress components corresponds to the initial damage of the rail and we can evaluate them nondestructively.
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Report
(4 results)
Research Products
(19 results)
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[Presentation] フーリエ解析によるX線応力測定2014
Author(s)
宮﨑利行、佐藤光、佐々木敏彦
Organizer
第４８回X線材料強度に関するシンポジウム
Place of Presentation
エル大阪(大阪府、大阪市）
Year and Date
2014-07-24 – 2014-07-25
Related Report
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