| Project/Area Number |
21360052
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
MUTOH Yoshiharu 長岡技術科学大学, 技術経営研究科, 教授 (00107137)
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| Co-Investigator(Kenkyū-buntansha) |
NAGATA Kohsoku 長岡技術科学大学, 技術経営研究科, 教授 (80432102)
NISHIDA Tomohisa 沼津工業高等専門学校, 機械工学科, 教授 (60156081)
MIYASHITA Yukio 長岡技術科学大学, 工学部, 准教授 (00303181)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥19,370,000 (Direct Cost: ¥14,900,000、Indirect Cost: ¥4,470,000)
Fiscal Year 2011: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2010: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2009: ¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
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| Keywords | フレッティング / 疲労 / その場観察 / き裂 / 摩耗 / 摩耗解析 / 寿命予測 / フレッティング摩耗 / き裂発生 / き裂伝ぱ |
|---|
| Research Abstract |
In order to conduct the test under different environmental conditions including air, an in-situ observation fretting fatigue testing machine combined with a laser micro scope was developed and the testing method for it was also established. According to the results of in-situ observation test, the testing method developed was effective to study wear process and crack propagation behavior observation during fretting fatigue. Contact phenomena and crack propagation behavior were also observed in vacuum condition. A new analysis method with taking account of wear process was proposed. Wear profile obtained by the analysis showed good agreement with that observed by the experiment.
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