A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTION
Low cycle fatigue failure is the main failure form of disks. In order to find a more accurate and reliable method to predict disks’ low cycle fatigue life,a correction life prediction model that describes the relation between Walker equivalent strain parameter and fatigue life was proposed based on...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2016-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.01.028 |
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| author | SHANG TiSong ZHAO Ming ZHANG Meng |
| author_facet | SHANG TiSong ZHAO Ming ZHANG Meng |
| author_sort | SHANG TiSong |
| collection | DOAJ |
| description | Low cycle fatigue failure is the main failure form of disks. In order to find a more accurate and reliable method to predict disks’ low cycle fatigue life,a correction life prediction model that describes the relation between Walker equivalent strain parameter and fatigue life was proposed based on the formula of three-parameter power function. The low cycle fatigue experimental data of 1Cr11Ni2W2 Mo V,GH4133,TC4 and TC11 materials at different conditions was simulated by the correction life prediction model and found the fitting curves can well describe the relation between Walker equivalent strain and fatigue life,and the life forecasting points are all in the 2 scatter band. In addition,using different methods to predict its life of high pressure compressor disk I at 60℃ and compared them with the experimental result. The results show that the correction model has a higher prediction accuracy than the other three models,its prediction value is 1048 that is close to the experimental value 1340 and the relative error is only- 21. 8%,moreover,this correction model can consider the influence on fatigue life that brought by the mean stress‘s change and provide a reference method for aircraft engine disks’ low cycle fatigue life prediction. |
| format | Article |
| id | doaj-art-02e64de7427c49b38aed58e1f379224a |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2016-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-02e64de7427c49b38aed58e1f379224a2025-01-15T02:37:14ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692016-01-013815115530593881A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTIONSHANG TiSongZHAO MingZHANG MengLow cycle fatigue failure is the main failure form of disks. In order to find a more accurate and reliable method to predict disks’ low cycle fatigue life,a correction life prediction model that describes the relation between Walker equivalent strain parameter and fatigue life was proposed based on the formula of three-parameter power function. The low cycle fatigue experimental data of 1Cr11Ni2W2 Mo V,GH4133,TC4 and TC11 materials at different conditions was simulated by the correction life prediction model and found the fitting curves can well describe the relation between Walker equivalent strain and fatigue life,and the life forecasting points are all in the 2 scatter band. In addition,using different methods to predict its life of high pressure compressor disk I at 60℃ and compared them with the experimental result. The results show that the correction model has a higher prediction accuracy than the other three models,its prediction value is 1048 that is close to the experimental value 1340 and the relative error is only- 21. 8%,moreover,this correction model can consider the influence on fatigue life that brought by the mean stress‘s change and provide a reference method for aircraft engine disks’ low cycle fatigue life prediction.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.01.028Low cycle fatigue（LCF）DisksThree-parameter power functionWalker equivalent strainLife prediction |
| spellingShingle | SHANG TiSong ZHAO Ming ZHANG Meng A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTION Jixie qiangdu Low cycle fatigue（LCF） Disks Three-parameter power function Walker equivalent strain Life prediction |
| title | A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTION |
| title_full | A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTION |
| title_fullStr | A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTION |
| title_full_unstemmed | A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTION |
| title_short | A NEW METHOD FOR DISK LOW CYCLE FATIGUE LIFE PREDICTION |
| title_sort | new method for disk low cycle fatigue life prediction |
| topic | Low cycle fatigue（LCF） Disks Three-parameter power function Walker equivalent strain Life prediction |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2016.01.028 |
| work_keys_str_mv | AT shangtisong anewmethodfordisklowcyclefatiguelifeprediction AT zhaoming anewmethodfordisklowcyclefatiguelifeprediction AT zhangmeng anewmethodfordisklowcyclefatiguelifeprediction AT shangtisong newmethodfordisklowcyclefatiguelifeprediction AT zhaoming newmethodfordisklowcyclefatiguelifeprediction AT zhangmeng newmethodfordisklowcyclefatiguelifeprediction |