Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steel
TIG-Dressing treatment is often used for steel welded joints in construction machinery manufacturing as an effective and reliable method for post-weld fatigue strength improvement. This paper investigates the fatigue performance of thick Q355D cruciform joints in heavy load-carrying steel structures...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-11-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542302803X |
| _version_ | 1797301461232648192 |
|---|---|
| author | Song Wei Xiaojian Shi Shoupan Wei Hongbo Xia Guangtao Zhou Reza Masoudi Nejad Filippo Berto |
| author_facet | Song Wei Xiaojian Shi Shoupan Wei Hongbo Xia Guangtao Zhou Reza Masoudi Nejad Filippo Berto |
| author_sort | Song Wei |
| collection | DOAJ |
| description | TIG-Dressing treatment is often used for steel welded joints in construction machinery manufacturing as an effective and reliable method for post-weld fatigue strength improvement. This paper investigates the fatigue performance of thick Q355D cruciform joints in heavy load-carrying steel structures under different TIG-Dressing treatments. Two TIG-Dressing treatments for the full-penetration welded joints were used for fatigue tests considering filling metal during this post-welded processing. Experimental tests studied the fatigue strength of TIG-Dressing cruciform welded joints of Q355D structural steel. The geometric parameters and relevant statistical analyses were performed by actual 3D optical measurement. Moreover, the stress concentration factors are calculated according to the actual geometrics of the welded joint. On the other hand, the effective notch stress and hot spot stress methods were employed to evaluate the fatigue data of Load-Carrying Welded joints (LCWJs) under different notch radius. The collected fatigue data from the literature was compared with the tested data by the above methods. The results show that the fatigue strength of LCWJs under TIG-Dressing processing without filler metal is higher than those under the same TIG-Dressing treatment with filler metal. The effective notch stress method with a fictitious notch radius r = rtrue + 1 mm (rtrue is the actual notch radius at weld toe) could obtain smaller scatter bands for the tested fatigue data. |
| first_indexed | 2024-03-07T23:22:53Z |
| format | Article |
| id | doaj.art-74fd1f36563b494dbcb3b7700e1ba1a1 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:22:53Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-74fd1f36563b494dbcb3b7700e1ba1a12024-02-21T05:27:32ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012759775993Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steelSong Wei0Xiaojian Shi1Shoupan Wei2Hongbo Xia3Guangtao Zhou4Reza Masoudi Nejad5Filippo Berto6School of Mechanical & Electrical Engineering, Xuzhou University of Technology, Xuzhou, China; Corresponding author.Xuzhou XCMG Mining Machinery Company, Xuzhou, ChinaXuzhou XCMG Mining Machinery Company, Xuzhou, ChinaZhengzhou Research Institute, Harbin Institute of Technology, Zhengzhou, ChinaCollege of Mechanical Engineering and Automation, Huaqiao University, Xiamen, ChinaDepartment of Civil Engineering, School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, ChinaDepartment of Chemical Engineering, Materials and Environment, Sapienza University of Rome, Roma, ItalyTIG-Dressing treatment is often used for steel welded joints in construction machinery manufacturing as an effective and reliable method for post-weld fatigue strength improvement. This paper investigates the fatigue performance of thick Q355D cruciform joints in heavy load-carrying steel structures under different TIG-Dressing treatments. Two TIG-Dressing treatments for the full-penetration welded joints were used for fatigue tests considering filling metal during this post-welded processing. Experimental tests studied the fatigue strength of TIG-Dressing cruciform welded joints of Q355D structural steel. The geometric parameters and relevant statistical analyses were performed by actual 3D optical measurement. Moreover, the stress concentration factors are calculated according to the actual geometrics of the welded joint. On the other hand, the effective notch stress and hot spot stress methods were employed to evaluate the fatigue data of Load-Carrying Welded joints (LCWJs) under different notch radius. The collected fatigue data from the literature was compared with the tested data by the above methods. The results show that the fatigue strength of LCWJs under TIG-Dressing processing without filler metal is higher than those under the same TIG-Dressing treatment with filler metal. The effective notch stress method with a fictitious notch radius r = rtrue + 1 mm (rtrue is the actual notch radius at weld toe) could obtain smaller scatter bands for the tested fatigue data.http://www.sciencedirect.com/science/article/pii/S223878542302803XFatigue strengthCruciform welded jointTIG-Dressed processingNotch stress method |
| spellingShingle | Song Wei Xiaojian Shi Shoupan Wei Hongbo Xia Guangtao Zhou Reza Masoudi Nejad Filippo Berto Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steel Journal of Materials Research and Technology Fatigue strength Cruciform welded joint TIG-Dressed processing Notch stress method |
| title | Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steel |
| title_full | Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steel |
| title_fullStr | Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steel |
| title_full_unstemmed | Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steel |
| title_short | Fatigue performance assessment of thick TIG-Dressing cruciform welded joints made by Q355D structural steel |
| title_sort | fatigue performance assessment of thick tig dressing cruciform welded joints made by q355d structural steel |
| topic | Fatigue strength Cruciform welded joint TIG-Dressed processing Notch stress method |
| url | http://www.sciencedirect.com/science/article/pii/S223878542302803X |
| work_keys_str_mv | AT songwei fatigueperformanceassessmentofthicktigdressingcruciformweldedjointsmadebyq355dstructuralsteel AT xiaojianshi fatigueperformanceassessmentofthicktigdressingcruciformweldedjointsmadebyq355dstructuralsteel AT shoupanwei fatigueperformanceassessmentofthicktigdressingcruciformweldedjointsmadebyq355dstructuralsteel AT hongboxia fatigueperformanceassessmentofthicktigdressingcruciformweldedjointsmadebyq355dstructuralsteel AT guangtaozhou fatigueperformanceassessmentofthicktigdressingcruciformweldedjointsmadebyq355dstructuralsteel AT rezamasoudinejad fatigueperformanceassessmentofthicktigdressingcruciformweldedjointsmadebyq355dstructuralsteel AT filippoberto fatigueperformanceassessmentofthicktigdressingcruciformweldedjointsmadebyq355dstructuralsteel |