| 大型加强板结构焊接顺序的效果研究(英文) |
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| 作者姓名： | Pankaj Biswas D. Anil Kumar N.R.Mandal M.M.Mahapatra |
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| 作者单位： | Department of Mechanical Engineering;Department of Ocean Engineering & Naval Architecture |
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| 摘 要： | Welding sequence has a significant effect on distortion pattern of large orthogonally stiffened panels normally used in ships and offshore structures. These deformations adversely affect the subsequent fitup and alignment of the adjacent panels. It may also result in loss of structural integrity. These panels primarily suffer from angular and buckling distortions. The extent of distortion depends on several parameters such as welding speed, plate thickness, welding current, voltage, restraints applied to the job while welding, thermal history as well as sequence of welding. Numerical modeling of welding and experimental validation of the FE model has been carried out for estimation of thermal history and resulting distortions. In the present work an FE model has been developed for studying the effect of welding sequence on the distortion pattern and its magnitude in fabrication of orthogonally stiffened plate panels.
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| 关 键 词： | elasto-plastic analysis welding distortion 3-D finite element analysis stiffened panel welding sequence |
| 收稿时间： | 10 June 2010 |
A study on the effect of welding sequence in fabrication of large stiffened plate panels |
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| Pankaj Biswas,D. Anil Kumar,N.R.Mandal,M.M.Mahapatra.A study on the effect of welding sequence in fabrication of large stiffened plate panels[J].Journal of Marine Science and Application,2011,10(4):429-436. |
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| Authors: | Pankaj Biswas D Anil Kumar N R Mandal M M Mahapatra |
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| Institution: | (1) Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran; |
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| Abstract: | Welding sequence has a significant effect on distortion pattern of large orthogonally stiffened panels normally used in ships
and offshore structures. These deformations adversely affect the subsequent fitup and alignment of the adjacent panels. It
may also result in loss of structural integrity. These panels primarily suffer from angular and buckling distortions. The
extent of distortion depends on several parameters such as welding speed, plate thickness, welding current, voltage, restraints
applied to the job while welding, thermal history as well as sequence of welding. Numerical modeling of welding and experimental
validation of the FE model has been carried out for estimation of thermal history and resulting distortions. In the present
work an FE model has been developed for studying the effect of welding sequence on the distortion pattern and its magnitude
in fabrication of orthogonally stiffened plate panels. |
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