Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain
Cyclotron is a key scientific tool and indispensable research platform for conducting cutting-edge research in nuclear equipment development as well as innovative applications of nuclear technology. The shell component has a double-layer thick-walled structure with intricate ribs and high-density, f...
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Elsevier
2025-02-01
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| Series: | Nuclear Engineering and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573324004571 |
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| author | Cheng Li Hua Zhai Lianwei Zhu Zhihong Liu Jianguo Ma Xiaofeng Zhu Qiong Liu |
| author_facet | Cheng Li Hua Zhai Lianwei Zhu Zhihong Liu Jianguo Ma Xiaofeng Zhu Qiong Liu |
| author_sort | Cheng Li |
| collection | DOAJ |
| description | Cyclotron is a key scientific tool and indispensable research platform for conducting cutting-edge research in nuclear equipment development as well as innovative applications of nuclear technology. The shell component has a double-layer thick-walled structure with intricate ribs and high-density, full-penetration welded joints. The mitigation of welding deformation is of profound significance to the performance of the cyclotron. The thick plate joint has many welding layers which will be divided into several steps to complete the backing, filler, and cap welding. The equivalent transverse and longitudinal plastic strains of different layers were extracted by the thermo-elastic-plastic method. The welding deformation generated by each layer of weld can be predicted by using the equivalent plastic strain, and the total distortion can be accumulated layer by layer. Numerical simulation and experimental studies were conducted on the welding deformation of the double shell specimen, and the welding sequence and design of the welding fixture were discussed in detail. The digital photogrammetry system was used to monitor the deformation state of the welded parts in real-time. The measured deformation was compared with the simulation results. Ultimately, the deformation of the specimen is controlled at 2.64 mm. The proposed method can flexibly evaluate the impact of each welding layer on welding deformation for multiple welds, which can provide technical guidance for cyclotron engineering manufacturing. |
| format | Article |
| id | doaj-art-cafa4db67b85465c89c0b141eb2e95f7 |
| institution | Kabale University |
| issn | 1738-5733 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj-art-cafa4db67b85465c89c0b141eb2e95f72025-01-31T05:11:07ZengElsevierNuclear Engineering and Technology1738-57332025-02-01572103208Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strainCheng Li0Hua Zhai1Lianwei Zhu2Zhihong Liu3Jianguo Ma4Xiaofeng Zhu5Qiong Liu6Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Hefei University of Technology, Hefei, 230009, ChinaAnhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Hefei University of Technology, Hefei, 230009, China; Jiangnan Emerging Industry Concentration Area, Chizhou, 247099, China; Corresponding author. Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment, Hefei University of Technology, Hefei, 230009, China.Hefei Metal Forming Intelligent Manufacturing Co., LTD, Hefei, 230601, ChinaInstitute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, China; Corresponding author.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, ChinaChina Institute of Atomic Energy, Beijing, 102413, ChinaHefei Metal Forming Intelligent Manufacturing Co., LTD, Hefei, 230601, ChinaCyclotron is a key scientific tool and indispensable research platform for conducting cutting-edge research in nuclear equipment development as well as innovative applications of nuclear technology. The shell component has a double-layer thick-walled structure with intricate ribs and high-density, full-penetration welded joints. The mitigation of welding deformation is of profound significance to the performance of the cyclotron. The thick plate joint has many welding layers which will be divided into several steps to complete the backing, filler, and cap welding. The equivalent transverse and longitudinal plastic strains of different layers were extracted by the thermo-elastic-plastic method. The welding deformation generated by each layer of weld can be predicted by using the equivalent plastic strain, and the total distortion can be accumulated layer by layer. Numerical simulation and experimental studies were conducted on the welding deformation of the double shell specimen, and the welding sequence and design of the welding fixture were discussed in detail. The digital photogrammetry system was used to monitor the deformation state of the welded parts in real-time. The measured deformation was compared with the simulation results. Ultimately, the deformation of the specimen is controlled at 2.64 mm. The proposed method can flexibly evaluate the impact of each welding layer on welding deformation for multiple welds, which can provide technical guidance for cyclotron engineering manufacturing.http://www.sciencedirect.com/science/article/pii/S1738573324004571Double shell structureWelding deformationDeformation diminutionInherent strain methodExperimental research |
| spellingShingle | Cheng Li Hua Zhai Lianwei Zhu Zhihong Liu Jianguo Ma Xiaofeng Zhu Qiong Liu Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain Nuclear Engineering and Technology Double shell structure Welding deformation Deformation diminution Inherent strain method Experimental research |
| title | Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain |
| title_full | Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain |
| title_fullStr | Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain |
| title_full_unstemmed | Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain |
| title_short | Numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain |
| title_sort | numerical investigation of welding deformation diminution for double shell structure using the layered inherent strain |
| topic | Double shell structure Welding deformation Deformation diminution Inherent strain method Experimental research |
| url | http://www.sciencedirect.com/science/article/pii/S1738573324004571 |
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