| 基于固有变形的船用钢薄板对接焊失稳变形的数值分析 |
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| 引用本文： | 王江超,牛业兴,易斌,周方明.基于固有变形的船用钢薄板对接焊失稳变形的数值分析[J].船舶工程,2018,40(12):55-60. |
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| 作者姓名： | 王江超 牛业兴 易斌 周方明 |
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| 作者单位： | 华中科技大学船舶与海洋工程学院,武汉430074;上海交通大学高新船舶与深海开发装备协同创新中心,上海200240;上海振华重工启东海洋工程股份有限公司,江苏启东,226251;华中科技大学船舶与海洋工程学院,武汉,430074;江苏科技大学材料科学与工程学院,江苏镇江,212003 |
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| 基金项目： | 国家自然科学基金(51609091)及中央高校基本科研业务费专项资金(2018KFYYXJJ011)资助 |
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| 摘 要： | 在船用钢薄板的焊接过程中,不但会产生常见的焊接变形,也有可能产生焊接失稳变形。本文以焊缝的固有变形为依据,阐明船用钢薄板对接焊失稳变形产生的内在机理；同时,以固有变形为输入参数,通过弹性有限元分析的数值模拟,预测出可能产生的失稳变形模态和变形值；最终,通过四种不同的工艺方法(激光焊、瞬态热拉伸、随焊激冷和间断焊等),来减小固有变形的数值,并控制薄板对接焊接头可能产生的失稳变形。
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| 关 键 词： | 固有变形 船用钢薄板 焊接失稳变形 失稳变形控制 |
| 收稿时间： | 2018/6/5 0:00:00 |
| 修稿时间： | 2019/1/9 0:00:00 |
Numerical Investigation on Welding Induced Buckling of Butt Welds with Thin Plates Using Inherent DeformationWang Jiangchao1, 2, Niu Yexing3, Yi Bin1, Zhou Fangming4 |
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| Abstract: | During the welding of thin plates, not only the normal welding distortion, but also welding induced buckling will be generated. In this paper, the target is to clarify the generation mechanism of welding induced buckling of butt welds with thin plates by means of inherent deformation. Meanwhile, with inherent deformations as input, numerical simulation with elastic FE can predict the possible welding distortion mode and its magnitude. The studied welding procedure with four different technologies (laser welding, thermal tension by side heating, heat sinking and intermittent welding), can reduce the magnitude of inherent deformation, and furthermore control the welding induced buckling in fabrication of butt welds with thin plates. |
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| Keywords: | thin plate welding induced buckling inherent deformation buckling distortion controlling |
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