Effect of welding sequence on residual stress and distortion in flat-bar stiffened plates
Numerical simulation based on finite element modelling is used to study the influence of welding sequences on the distribution of residual stress and distortion generated when welding a flat-bar stiffener to a steel plate. The simulation consists of sequentially coupled thermal and structural analys...
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| Veröffentlicht in: | Marine structures 2010-07, Vol.23 (3), p.385-404 |
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| creator | Gannon, Liam Liu, Yi Pegg, Neil Smith, Malcolm |
| description | Numerical simulation based on finite element modelling is used to study the influence of welding sequences on the distribution of residual stress and distortion generated when welding a flat-bar stiffener to a steel plate. The simulation consists of sequentially coupled thermal and structural analyses using an element birth and death technique to model the addition of weld metal to the workpiece. The temperature field during welding and the welding-induced residual stress and distortion fields are predicted and results are compared with experimental measurements and analytical predictions. 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 stiffened plate under uniaxial compression are discussed. Appropriate conclusions and recommendations regarding the welding sequence are presented. |
| doi_str_mv | 10.1016/j.marstruc.2010.05.002 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0951-8339 |
| ispartof | Marine structures, 2010-07, Vol.23 (3), p.385-404 |
| issn | 0951-8339 1873-4170 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_818831343 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Applied sciences Computer simulation Distortion Exact sciences and technology Finite element modeling Ground, air and sea transportation, marine construction Marine Marine construction Mathematical analysis Mathematical models Plates Residual stress Stiffened plates Ultimate tensile strength Welding |
| title | Effect of welding sequence on residual stress and distortion in flat-bar stiffened plates |
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