Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue Loading
This paper aims to explore the fatigue life estimation approach of welded joints with precrack under coupled impact and fatigue loading, and the base metal is dissimilar 5083H111 and 5754 aluminum alloy. Impact tests are first carried out on the dissimilar lightweight materials welded joint with pre...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/15/14/5077 |
| _version_ | 1797445478761103360 |
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| author | Zhengshun Ni Tao Xiong Jie Lei Liuping Wang Tong Gao Jianwu Yu Chengji Mi |
| author_facet | Zhengshun Ni Tao Xiong Jie Lei Liuping Wang Tong Gao Jianwu Yu Chengji Mi |
| author_sort | Zhengshun Ni |
| collection | DOAJ |
| description | This paper aims to explore the fatigue life estimation approach of welded joints with precrack under coupled impact and fatigue loading, and the base metal is dissimilar 5083H111 and 5754 aluminum alloy. Impact tests are first carried out on the dissimilar lightweight materials welded joint with precrack located in the middle of the specimen, and a stress and strain field is obtained to determine the fatigue damage model parameters by using finite element dynamic analysis to simulate the impact process. Based, on the S-N curve of welded joints, the predicted life expectancy is found to be inconsistent with the experimental results. According to the continuum damage mechanics, the lifetime assessment model is presented to calculate both impact and fatigue damage. The estimated results agree well with the experimental ones. |
| first_indexed | 2024-03-09T13:26:22Z |
| format | Article |
| id | doaj.art-83db193b4e624f01ac8ce7b89ed83c45 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T13:26:22Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-83db193b4e624f01ac8ce7b89ed83c452023-11-30T21:23:03ZengMDPI AGMaterials1996-19442022-07-011514507710.3390/ma15145077Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue LoadingZhengshun Ni0Tao Xiong1Jie Lei2Liuping Wang3Tong Gao4Jianwu Yu5Chengji Mi6Department of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaDepartment of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaDepartment of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaDepartment of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaDepartment of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaDepartment of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, ChinaDepartment of Mechanical Engineering, Hunan University of Technology, Zhuzhou 412007, ChinaThis paper aims to explore the fatigue life estimation approach of welded joints with precrack under coupled impact and fatigue loading, and the base metal is dissimilar 5083H111 and 5754 aluminum alloy. Impact tests are first carried out on the dissimilar lightweight materials welded joint with precrack located in the middle of the specimen, and a stress and strain field is obtained to determine the fatigue damage model parameters by using finite element dynamic analysis to simulate the impact process. Based, on the S-N curve of welded joints, the predicted life expectancy is found to be inconsistent with the experimental results. According to the continuum damage mechanics, the lifetime assessment model is presented to calculate both impact and fatigue damage. The estimated results agree well with the experimental ones.https://www.mdpi.com/1996-1944/15/14/5077welded jointscontinuum damage mechanicsfatigue lifeimpact damage |
| spellingShingle | Zhengshun Ni Tao Xiong Jie Lei Liuping Wang Tong Gao Jianwu Yu Chengji Mi Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue Loading Materials welded joints continuum damage mechanics fatigue life impact damage |
| title | Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue Loading |
| title_full | Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue Loading |
| title_fullStr | Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue Loading |
| title_full_unstemmed | Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue Loading |
| title_short | Life Prediction Method of Dissimilar Lightweight Materials Welded Joints with Precrack under Coupled Impact-Fatigue Loading |
| title_sort | life prediction method of dissimilar lightweight materials welded joints with precrack under coupled impact fatigue loading |
| topic | welded joints continuum damage mechanics fatigue life impact damage |
| url | https://www.mdpi.com/1996-1944/15/14/5077 |
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