REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT)
Large welding structures have been widely used in various major equipment fields. Life evaluation of welding structures is very important for equipment safety.The fatigue life assessment methods including nominal stress method, notch stress method, hot spot stress method and equivalent structural st...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2022-01-01
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| Series: | Jixie qiangdu |
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| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.024 |
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| author | CAO LeiLei WANG Yan WANG LiuTao SONG XuDing GUO ChengChen |
| author_facet | CAO LeiLei WANG Yan WANG LiuTao SONG XuDing GUO ChengChen |
| author_sort | CAO LeiLei |
| collection | DOAJ |
| description | Large welding structures have been widely used in various major equipment fields. Life evaluation of welding structures is very important for equipment safety.The fatigue life assessment methods including nominal stress method, notch stress method, hot spot stress method and equivalent structural stress method are summarized for large welded structures. The basic principles, advantages and disadvantages of various methods are compared and analyzed. The results show that the nominal stress method is simple and convenient, and can be used for simple welding structure analysis in various fields; the hot spot stress method is widely used in the field of marine ships; the notch stress method is complex in modeling and solving, and it can be used for both fatigue analysis of butt weld toe and weld root; the equivalent structural stress method is mesh insensitive, and can unify the application of various welded joints by a main SN curve, and has great potential application for engineering. The fatigue life assessment of large welded structures application in the fields of rail transit, ships, bridges, construction machinery and vehicles are introduced. The main difficulties and problems in the fatigue life prediction of the large welded structures at the emerging stage are analyzed. It provides references and ideas for the development of fatigue life evaluation methods for the large welded structures in the future. |
| format | Article |
| id | doaj-art-5774748ee2564a1ca50b24e449b3cf4f |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2022-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-5774748ee2564a1ca50b24e449b3cf4f2025-01-15T02:39:45ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692022-01-011443145436350325REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT)CAO LeiLeiWANG YanWANG LiuTaoSONG XuDingGUO ChengChenLarge welding structures have been widely used in various major equipment fields. Life evaluation of welding structures is very important for equipment safety.The fatigue life assessment methods including nominal stress method, notch stress method, hot spot stress method and equivalent structural stress method are summarized for large welded structures. The basic principles, advantages and disadvantages of various methods are compared and analyzed. The results show that the nominal stress method is simple and convenient, and can be used for simple welding structure analysis in various fields; the hot spot stress method is widely used in the field of marine ships; the notch stress method is complex in modeling and solving, and it can be used for both fatigue analysis of butt weld toe and weld root; the equivalent structural stress method is mesh insensitive, and can unify the application of various welded joints by a main SN curve, and has great potential application for engineering. The fatigue life assessment of large welded structures application in the fields of rail transit, ships, bridges, construction machinery and vehicles are introduced. The main difficulties and problems in the fatigue life prediction of the large welded structures at the emerging stage are analyzed. It provides references and ideas for the development of fatigue life evaluation methods for the large welded structures in the future.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.024Fatigue lifeWelding structureFatigue assessment methodReview |
| spellingShingle | CAO LeiLei WANG Yan WANG LiuTao SONG XuDing GUO ChengChen REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT) Jixie qiangdu Fatigue life Welding structure Fatigue assessment method Review |
| title | REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT) |
| title_full | REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT) |
| title_fullStr | REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT) |
| title_full_unstemmed | REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT) |
| title_short | REVIEW OF RESEARCH ON FATIGUE LIFE EVALUATION FOR LARGE WELDED STRUCTURES (MT) |
| title_sort | review of research on fatigue life evaluation for large welded structures mt |
| topic | Fatigue life Welding structure Fatigue assessment method Review |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2022.06.024 |
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