| 厚钢板对接焊接三维有限元数值模拟与分析 |
| |
| 引用本文： | 郭彦林,陈航,袁星.厚钢板对接焊接三维有限元数值模拟与分析[J].长安大学学报(建筑与环境科学版),2014(1):90-97. |
| |
| 作者姓名： | 郭彦林 陈航 袁星 |
| |
| 作者单位： | 清华大学 土木工程系,北京100084 |
| |
| 基金项目： | 基金项目：清华大学自主科研计划杰出贡献专项项目（2012210134） |
| |
| 摘 要： | 采用有限元数值模拟方法，建立考虑热-固耦合效应的钢板对接焊接的三维有限元模型，运用生死单元技术模拟焊接全过程，从焊接残余变形和残余应力的角度，验证了分析模型的有效性，并分析了板件边界约束、焊接层数与道数、板件厚度、焊接顺序以及施工工艺对计算结果的影响。探讨了简化计算的可能性与正确性，并考虑了保温和设置支撑等施工工艺对焊接施工的影响。研究成果可为设计与施工提供一定的参考。
|
| 关 键 词： | 厚钢板 对接焊接 热-结构耦合 残余应力 残余变形 有限元 数值模拟 |
3-D Finite Element Numerical Simulation and Analysis on Butt Welding of Thick Steel Plate |
| |
| GUO Yan-lin,CHEN Hang,YUAN Xing.3-D Finite Element Numerical Simulation and Analysis on Butt Welding of Thick Steel Plate[J].Journal of Northwestern Institute of Architectural Engineering,2014(1):90-97. |
| |
| Authors: | GUO Yan-lin CHEN Hang YUAN Xing |
| |
| Affiliation: | (Department of Civil Engineering, Tsinghua University, Beijing 100084, China) |
| |
| Abstract: | Finite element numerical simulation was adopted to erect 3-D finite element model , considering heat-solid coupling effect .Meanwhile ,live-dead element technology was applied to simulate the whole welding process .The effectiveness of the model was verified in the aspects of residual deformation and residual stress .The influences of plate boundary constraint ,welding layer and pass ,plate thickness ,welding sequence and construction process on the behavior of steel plates on calculation results were analyzed . The possibility and correctness of simplified calculation were discussed .The influences of construction techniques such as heat preservation and support setting on welding were considered .The conclusions can provide some references to welding design and construction . |
| |
| Keywords: | thick steel plate butt welding thermal-structural coupling residual stress residual deformation finite element numerical simulation |
| 本文献已被 维普 等数据库收录！ |
