B402 CHARACTERIZATION OF FRACTURE MECHANICS OF HIGH SPEED TRAIN WHEELSETS DEPENDING ON AGING EFFECTS AND ON THE LOCATION EXAMINED
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概要
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In the present study, the following fracture mechanics characterization tests were carried out in accordance with various locations on the wheelset for high-speed train : fracture toughness depending on load rate, fatigue crack growth rate and fatigue thresholds. The results show that the fatigue crack growth rates in accordance to the locations on wheelset were not remarkably different, and the fatigue threshold in the region of the bolt-hole is lower than that in other regions. The fracture toughness depending on load rate data shows that once the downward curve from quasi-static values was reached, subsequent values showed a slow increase with respect to the impact velocity. This means that dynamic fracture toughness should be considered in the design code of the wheelset material.
- 一般社団法人日本機械学会の論文
著者
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OGAWA Kazuhiro
Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University
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SHOJI Tetsuo
Fracture and Reliability Research Institute, Graduate School of Engineering, Tohoku University
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Ogawa Kazuhiro
Fracture And Reliability Research Institute Tohoku University
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Ogawa Kazuhiro
Fracture Research Institute Tohoku Univ.
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Kwon Seok
Rolling Stock Research Department, Korea Railroad Reasearch Institute
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Kwon Seok
Rolling Stock Research Department Korea Railroad Reasearch Institute
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Shoji Tetsuo
Fracture Research Institute Tohoku Univ.
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Shoji Tetsuo
Fracture And Reliability Research Institute Tohoku University
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- B402 CHARACTERIZATION OF FRACTURE MECHANICS OF HIGH SPEED TRAIN WHEELSETS DEPENDING ON AGING EFFECTS AND ON THE LOCATION EXAMINED
- PREFACE
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