| Predictive analysis of buckling distortion of thin-plate welded structures |
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| 引用本文： | 杨新岐,霍立兴,张玉凤,阎俊霞. Predictive analysis of buckling distortion of thin-plate welded structures[J]. 中国焊接, 2002, 11(2): 138-142 |
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| 作者姓名： | 杨新岐 霍立兴 张玉凤 阎俊霞 |
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| 作者单位： | SchoolofMaterialScienceandEngineering,TianjinUniversity,Tianjin,300072 |
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| 摘 要： | The welding buckling distortions of thin-plated structures were investigated based on finite element methods.An engineering treatment method for predicating the buckling distortion was proposed.The equivalent applied thermal-load was used to simulate the welding residual stress,thus the calculation of complex welding distortion can be transformed into 3D elastic structural applied-load analyses,which can reduce the quantities of calculating work effectively.The validation of the method was verified by comparison of the numerical calculation with experimental results.The prediction of buckling distortion for side-walled structures of passenger train was performed and the calculation was in agreement with measuring results in general.It is shown that the main factors for producing the buckling are the intermittent fillet and plug weld during welding general.It is shown that the main foactors for groducing the buckling are the intermittent fillet and plug weld during welding the stiffened beams and columns to the panel.
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| 关 键 词： | 焊接 膨胀变形 数字分析 薄板焊 结构 |
Predictive analysis of buckling distortion of thin-plate welded structures |
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| Abstract: | The welding buckling distortions of thin-plated structures were investigated based on finite element methods. An engineering treatment method for predicating the buckling distortion was proposed. The equivalent applied thermal-load was used to simulate the welding residual stress, thus the calculation of complex welding distortion can be transformed into 3D elastic structural applied-load analyses, which can reduce the quantities of calculating work effectively. The validation of the method was verified by comparison of the numerical calculation with experimental results. The prediction of buckling distortion for side-walled structures of passenger train was performed and the calculation was in agreement with measuring results in general. It is shown that the main factors for producing the buckling are the intermittent fillet and plug weld during welding the stiffened beams and columns to the panel. |
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| Keywords: | welding buckling distortion equivalent applied thermal-load numerical analysis |
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