APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGY
Fatigue failure of the airframe structure occurs almost in the hole position of the fastener hole,Structural fatigue fracture will lead to a catastrophic accident. PHM（ Prediction and Health Management） technology can be used to predict when fatigue failure may occur,thereby achieving self-service s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Journal of Mechanical Strength
2017-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.02.032 |
| _version_ | 1797767885147340800 |
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| author | SONG Bo ZHU QingYu ZENG ZhaoYang |
| author_facet | SONG Bo ZHU QingYu ZENG ZhaoYang |
| author_sort | SONG Bo |
| collection | DOAJ |
| description | Fatigue failure of the airframe structure occurs almost in the hole position of the fastener hole,Structural fatigue fracture will lead to a catastrophic accident. PHM（ Prediction and Health Management） technology can be used to predict when fatigue failure may occur,thereby achieving self-service security and reducing the use and protection costs. Based on the failure physical model,the fatigue life prediction method of the joint is established in this paper. Firstly,the stress serious factor and the fatigue notch coefficient of the hole member are solved. Then,the elastic section of the strain-life curve is modified to make the local stress-which is suitable for the prediction of high and low cycle fatigue life. The results show that the error of the fatigue life prediction method is less than 17% compared with the fatigue test results,which shows the effectiveness of the proposed method. |
| first_indexed | 2024-03-12T20:46:25Z |
| format | Article |
| id | doaj.art-b81726867f5342aab14ec8f69730fa82 |
| institution | Directory Open Access Journal |
| issn | 1001-9669 |
| language | zho |
| last_indexed | 2024-03-12T20:46:25Z |
| publishDate | 2017-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj.art-b81726867f5342aab14ec8f69730fa822023-08-01T07:44:10ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692017-01-013943544030598092APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGYSONG BoZHU QingYuZENG ZhaoYangFatigue failure of the airframe structure occurs almost in the hole position of the fastener hole,Structural fatigue fracture will lead to a catastrophic accident. PHM（ Prediction and Health Management） technology can be used to predict when fatigue failure may occur,thereby achieving self-service security and reducing the use and protection costs. Based on the failure physical model,the fatigue life prediction method of the joint is established in this paper. Firstly,the stress serious factor and the fatigue notch coefficient of the hole member are solved. Then,the elastic section of the strain-life curve is modified to make the local stress-which is suitable for the prediction of high and low cycle fatigue life. The results show that the error of the fatigue life prediction method is less than 17% compared with the fatigue test results,which shows the effectiveness of the proposed method.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.02.032PHM;Stress severity factor;Local stress-strain method;Fatigue life |
| spellingShingle | SONG Bo ZHU QingYu ZENG ZhaoYang APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGY Jixie qiangdu PHM;Stress severity factor;Local stress-strain method;Fatigue life |
| title | APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGY |
| title_full | APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGY |
| title_fullStr | APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGY |
| title_full_unstemmed | APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGY |
| title_short | APPLICATION ON PREDICTING FATIGUE LIFE IN AIRCRAFT STRUCTURE BASED ON PHM TECHNOLOGY |
| title_sort | application on predicting fatigue life in aircraft structure based on phm technology |
| topic | PHM;Stress severity factor;Local stress-strain method;Fatigue life |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2017.02.032 |
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