船舶与海洋工程学报（英文版）
船舶與海洋工程學報（英文版）
선박여해양공정학보（영문판）
JOURNAL OF MARINE SCIENCE AND APPLICATION
2011年
4期
429-436
,共8页
elasto-plastic analysis%welding distortion%3-D finite element analysis%stiffened panel%welding sequence
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.
