2015 Fiscal Year Final Research Report
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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| Keywords | 残留応力 / X線回折 / デバイリング / 三軸応力 |
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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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| Free Research Field |
金属加工学
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