Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMU
The ultrasonic inspection interval of different types of vehicle axles and the overview of CRH2A EMU axles was introduced. By comprehensively considering the initial crack, critical crack, stress ratio, fracture toughness and effective stress intensity factor and other factors, the formula for calcu...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Drive for Locomotives
2020-09-01
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| Series: | 机车电传动 |
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| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.05.022 |
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| _version_ | 1849728850081087488 |
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| author | Menghong YE |
| author_facet | Menghong YE |
| author_sort | Menghong YE |
| collection | DOAJ |
| description | The ultrasonic inspection interval of different types of vehicle axles and the overview of CRH2A EMU axles was introduced. By comprehensively considering the initial crack, critical crack, stress ratio, fracture toughness and effective stress intensity factor and other factors, the formula for calculating the fatigue crack propagation life was obtained. Furthermore, based on the unilateral semi-elliptical surface crack existing at the weakest part of the axle and the maximum stress amplitude, the fatigue crack growth life of CRH2A EMU axles was calculated, with comparison and analysis of the ultrasonic flaw detection cycle of the axles, it was proved feasible to optimize the current ultrasonic flaw detection interval. |
| format | Article |
| id | doaj-art-57aab18ea2fd4b7f8b4de7622243b4b0 |
| institution | DOAJ |
| issn | 1000-128X |
| language | zho |
| publishDate | 2020-09-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-57aab18ea2fd4b7f8b4de7622243b4b02025-08-20T03:09:25ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2020-09-0110110520922457Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMUMenghong YEThe ultrasonic inspection interval of different types of vehicle axles and the overview of CRH2A EMU axles was introduced. By comprehensively considering the initial crack, critical crack, stress ratio, fracture toughness and effective stress intensity factor and other factors, the formula for calculating the fatigue crack propagation life was obtained. Furthermore, based on the unilateral semi-elliptical surface crack existing at the weakest part of the axle and the maximum stress amplitude, the fatigue crack growth life of CRH2A EMU axles was calculated, with comparison and analysis of the ultrasonic flaw detection cycle of the axles, it was proved feasible to optimize the current ultrasonic flaw detection interval.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.05.022CRH2AEMUaxlethe fatigue crack growthlife analysisthe ultrasonic inspection interval |
| spellingShingle | Menghong YE Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMU 机车电传动 CRH2A EMU axle the fatigue crack growth life analysis the ultrasonic inspection interval |
| title | Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMU |
| title_full | Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMU |
| title_fullStr | Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMU |
| title_full_unstemmed | Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMU |
| title_short | Discussion on Ultrasonic Inspection Intervals Based on Fatigue Crack Growth Life Analysis of Axle for CRH2A EMU |
| title_sort | discussion on ultrasonic inspection intervals based on fatigue crack growth life analysis of axle for crh2a emu |
| topic | CRH2A EMU axle the fatigue crack growth life analysis the ultrasonic inspection interval |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128x.2020.05.022 |
| work_keys_str_mv | AT menghongye discussiononultrasonicinspectionintervalsbasedonfatiguecrackgrowthlifeanalysisofaxleforcrh2aemu |