Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole Plate
In order to determine the average behavior time of widespread fatigue damage (WFD) in an aircraft multi-site damage (MSD) structure and complete the fatigue analysis of WFD sensitive parts, this paper adopts a probabilistic method to analyze the crack initiation and crack propagation of a single row...
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| Format: | Article |
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MDPI AG
2022-04-01
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| Series: | Aerospace |
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| Online Access: | https://www.mdpi.com/2226-4310/9/4/215 |
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| author | Kai Liu Fangli Wang Wei Pan Le Yang Shuwei Bai Qiang Zhu Mingbo Tong |
| author_facet | Kai Liu Fangli Wang Wei Pan Le Yang Shuwei Bai Qiang Zhu Mingbo Tong |
| author_sort | Kai Liu |
| collection | DOAJ |
| description | In order to determine the average behavior time of widespread fatigue damage (WFD) in an aircraft multi-site damage (MSD) structure and complete the fatigue analysis of WFD sensitive parts, this paper adopts a probabilistic method to analyze the crack initiation and crack propagation of a single row of collinear seven-hole plates. The simulation analysis of the whole process from crack initiation to structural failure is realized. First, through statistical analysis of the test data of the LY12-CZ alloy single-detail plate with hole, the probability distribution of crack initiation life and growth rate is obtained, and this probability distribution is expressed by the randomization of variables. Then, using the related theories of fracture mechanics and fatigue statistics, the whole process of initiation, propagation, and connection of multiple cracks in the MSD structure to the occurrence of WFD was realized through the Monte Carlo method. Finally, a group of single-row seven-hole plate examples are used to verify the accuracy of the calculation results. The results show that the calculated results in this paper are in good agreement with the experimental data, and can accurately predict the life of MSD structures under a certain reliability. |
| first_indexed | 2024-03-09T11:19:21Z |
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| id | doaj.art-9783cdee6a324cb1b93ae392399de889 |
| institution | Directory Open Access Journal |
| issn | 2226-4310 |
| language | English |
| last_indexed | 2024-03-09T11:19:21Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
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| series | Aerospace |
| spelling | doaj.art-9783cdee6a324cb1b93ae392399de8892023-12-01T00:22:24ZengMDPI AGAerospace2226-43102022-04-019421510.3390/aerospace9040215Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole PlateKai Liu0Fangli Wang1Wei Pan2Le Yang3Shuwei Bai4Qiang Zhu5Mingbo Tong6College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCollege of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaAVIC Chengdu Aircraft Industral (Group) Co., Ltd., Chengdu 610092, ChinaAVIC Jincheng Nanjing Engineering Institute of Aircraft System, Nanjing 211106, ChinaShanghai Electro-Mechanical Engineering Institute, Shanghai 201109, ChinaChina Special Vehicle Research Institute, Jingmen 448000, ChinaCollege of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaIn order to determine the average behavior time of widespread fatigue damage (WFD) in an aircraft multi-site damage (MSD) structure and complete the fatigue analysis of WFD sensitive parts, this paper adopts a probabilistic method to analyze the crack initiation and crack propagation of a single row of collinear seven-hole plates. The simulation analysis of the whole process from crack initiation to structural failure is realized. First, through statistical analysis of the test data of the LY12-CZ alloy single-detail plate with hole, the probability distribution of crack initiation life and growth rate is obtained, and this probability distribution is expressed by the randomization of variables. Then, using the related theories of fracture mechanics and fatigue statistics, the whole process of initiation, propagation, and connection of multiple cracks in the MSD structure to the occurrence of WFD was realized through the Monte Carlo method. Finally, a group of single-row seven-hole plate examples are used to verify the accuracy of the calculation results. The results show that the calculated results in this paper are in good agreement with the experimental data, and can accurately predict the life of MSD structures under a certain reliability.https://www.mdpi.com/2226-4310/9/4/215widespread fatigue damageprobabilisticsfatigue crack growthMonte Carlo method |
| spellingShingle | Kai Liu Fangli Wang Wei Pan Le Yang Shuwei Bai Qiang Zhu Mingbo Tong Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole Plate Aerospace widespread fatigue damage probabilistics fatigue crack growth Monte Carlo method |
| title | Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole Plate |
| title_full | Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole Plate |
| title_fullStr | Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole Plate |
| title_full_unstemmed | Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole Plate |
| title_short | Probability Analysis of Widespread Fatigue Damage in LY12-CZ Aluminum Alloy Single-Row Seven-Hole Plate |
| title_sort | probability analysis of widespread fatigue damage in ly12 cz aluminum alloy single row seven hole plate |
| topic | widespread fatigue damage probabilistics fatigue crack growth Monte Carlo method |
| url | https://www.mdpi.com/2226-4310/9/4/215 |
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