Jul 01,2010 effect of sequence and stiffener shape on welding#0183;Welding sequences A and B resulted in the largest lateral deflections of the stiffener.Sequences C and D resulted in the least distortion of both plate and stiffener for the geometry considered.Considering both residual stress and distortion as a result of welding,welding sequence D is identified as the preferred welding sequence with the lowest welding-induced residual stress and
Effect of welding sequence on distortions Welding of stiffened plates results in distortions in the form of transverse shrinkage,longitudinal shrinkage,longitudinal bending and transverse bending.Bending distortions are particularly impor- tant in this case since they have a signicant effect on the ultimate strength of stiffened plates acting as beam-columns.12345Next
Cited by 156Publish Year 2010Author Liam Gannon,Liam Gannon,Yi Liu,Neil Pegg,Malcolm Smith(PDF) Effect of welding sequence on residual stress and The effect of four welding sequences on the magnitude of residual stress and distortion in both the plate and the stiffener is investigated and their effects on the ultimate strength of the
Jan 01,2020 effect of sequence and stiffener shape on welding#0183;The sequence A in the tension area that occurs next to the weld zone is higher,but the sequence B produces a higher compressive stress on the stiffener.(2) The welding sequence does not affect the distribution pattern of vertical deformation of the plate; however,the vertical deformations over the first half of the plate in the sequence B are higher than those in the sequence A,and by moving
The welding distortions of large-scale structures are extraordinary complicated.If an effective tool of predicting welding distortion is available,then marine design and manufacturing engineers cEffect of sequence and stiffener shape on welding Oct 01,2018 effect of sequence and stiffener shape on welding#0183;The elastic analysis reveals some distortions on the edge and inside of the panel.The distortions can be minimized by changing welding sequence of panel stiffeners to symmetrical welding of type B and changing shape to L-stiffener as well as changing stiffener material to the SM570.
Investigations on the effect of the welding sequence revealed that short welding passes from the middle to the edges are preferred since they result in smaller distortion and residual stress [27 Intermediate Tranverse Stiffeners in Stiffened Plate Girderson transverse stiffeners a numerical parametric study was performed.The idea is to simplify design of intermediate transverse stiffener only on stiffness requirement which is much more practical than checking the maximum stresses and out of plane displacement of the transverse stiffener due to effect of deviation forces and tension field action on
In this paper,a numerical simulation based on finite element method is presented to study the effect of welding sequences on the magnitude and shape of distortion when welding several flat-bar stiffeners to a steel plate in ship deck structure.The simulation includes a three dimensional transient and nonlinear sequentially coupled thermal and mechanical analyses in ANSYS commercial code Proc IMechE Part B Comparative study of welding welding deformation and residual stress were discussed.Chen et al.12 studied the influence of welding sequence on distortion and residual of a large stiffened plate structure by an improved thermal elasto-plastic FEM.The welding directions and sequences of longitudinal stiffeners were shown to have a significant effect on welding distortions.