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Comparative study on evaluation of tendon force for welding distortion prediction in thin plate fabrication

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【Author】 Wang Jiangchao;Zhou Hong;Zhao Hongquan;Zhou Fangming;Ma Ninshu;School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology;School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology;School of Material Science and Engineering,Jiangsu University of Science and Technology;Joining and Welding Research Institute,Osaka University;

【机构】 School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology； School of Naval Architecture and Ocean Engineering,Jiangsu University of Science and Technology； School of Material Science and Engineering,Jiangsu University of Science and Technology； Joining and Welding Research Institute,Osaka University；

【摘要】 Tendon force is an essential concept to predict welding distortion such as longitudinal shrinkage and welding induced buckling in thin plate fabrication. In this study,three approaches with experimental,theoretical and computational analysis,are examined to evaluate the magnitude of tendon force. In detail,inherent deformation theory is introduced first,the theoretical analysis to obtain the inherent strain solution is also reviewed; and then analytical solution for tendon force is achieved. Also,the theory of FE analysis for welding is introduced and implemented in a computation to obtain the transient temperature distribution,plastic strain,residual stress and welding distortion in a bead-on-plate welded joint with 2. 28 mm in thickness. The longitudinal displacement is employed to evaluate tendon force directly,and these computed inherent strain and inherent stress can also be employed to evaluate tendon force by integration approach later. All the evaluated magnitudes of tendon force have a good agreement with each other.更多还原

【Abstract】 Tendon force is an essential concept to predict welding distortion such as longitudinal shrinkage and welding induced buckling in thin plate fabrication. In this study,three approaches with experimental,theoretical and computational analysis,are examined to evaluate the magnitude of tendon force. In detail,inherent deformation theory is introduced first,the theoretical analysis to obtain the inherent strain solution is also reviewed; and then analytical solution for tendon force is achieved. Also,the theory of FE analysis for welding is introduced and implemented in a computation to obtain the transient temperature distribution,plastic strain,residual stress and welding distortion in a bead-on-plate welded joint with 2. 28 mm in thickness. The longitudinal displacement is employed to evaluate tendon force directly,and these computed inherent strain and inherent stress can also be employed to evaluate tendon force by integration approach later. All the evaluated magnitudes of tendon force have a good agreement with each other.更多还原

【关键词】 tendon force； welding distortion prediction； FE analysis； inherent deformation；
【Key words】 tendon force； welding distortion prediction； FE analysis； inherent deformation；

【基金】 supported by the National Natural Science Foundation of China(Grant No.51609091);the Fundamental Research Funds for the Central Universities(Grant No.2015MS102)

【文献出处】 China Welding ,中国焊接(英文版) , 编辑部邮箱 ,2017年03期

【分类号】TG404
【被引频次】9
【下载频次】58

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