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| 焊接顺序对中厚板对接焊残余应力的影响 | |
| 引用本文： | 戴晴华,季鹏,殷晨波,易迪升,王斌,朱洁.焊接顺序对中厚板对接焊残余应力的影响[J].机械设计与制造,2011(7). |
| 作者姓名： | 戴晴华 季鹏 殷晨波 易迪升 王斌 朱洁 |
| 作者单位： | 1. 三一重机股份责任公司,昆山,215300 2. 三一重机股份责任公司,昆山,215300;南京工业大学,车辆与工程机械研究所,南京,210009 3. 南京工业大学,车辆与工程机械研究所,南京,210009 |
| 摘 要： | 针对同种材料,但几何结构不同的中厚板结构件之间的对接焊,运用有限元软件进行模拟,分析多层多道焊各层焊缝的焊接顺序对焊缝区域横、纵向残余应力的影响。采用内生热的加载方式模拟热源,采用生死单元法模拟多层多道焊缝的焊接过程。模拟结果表明,从几何尺寸小的一边向几何尺寸大的一边焊,沿焊缝底部和顶部中心线方向产生的横纵向残余应力峰值最小;底层的几道焊缝的焊接顺序对焊缝底部和顶部中心线方向所产生的横纵向残余应力的影响不大。 |
| 关 键 词： | 数值模拟 焊接顺序 残余应力 |
Influences of welding sequence on residual stress of plate butt welding |
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| DAI Qing-hua,JI Peng,YIN Chen-bo,YI Di-sheng,WANG Bin,ZHU Jie.Influences of welding sequence on residual stress of plate butt welding[J].Machinery Design & Manufacture,2011(7). | |
| Authors: | DAI Qing-hua JI Peng YIN Chen-bo YI Di-sheng WANG Bin ZHU Jie |
| Affiliation: | DAI Qing-hua1,JI Peng1,2,YIN Chen-bo2,YI Di-sheng1,WANG Bin2,ZHU Jie2(1SANY Co.,Ltd,Kunshan,Kunshan 215300,China)(2Vehicles and Construction Machinery and Equipment Research Institute,Nanjing University of Technology,Nanjing 210009,China) |
| Abstract: | Specific to plate butt welding with same materials and different geometry structures,a simulation is carried out by adopting finite element analysis software and the influences of welding sequence on transverse and longitudinal residual stress in the process of multi-layer and multi-pass welding are analyzed.Then internal heat generation loading method is applied to simulate the heat source as well as death element method is applied to simulate the welding process for multi-layer and multi-pass welding,whic... |
| Keywords: | Numerical simulation Welding sequence Residual stress |
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