电渣焊接头温度场数值模拟
Numerical simulation of electro slag welding temperature field
-
摘要: 为了研究建筑钢结构箱型柱中腹板与隔板处电渣焊接头的温度场,以有限元软件MSC.Marc为平台,开发了用于电渣焊温度场的计算方法. 在所开发的计算方法中,采用了半椭球等密度热源模型来模拟电渣焊的热输入,以生死单元技术考虑焊缝成形,并采用实测得到的低合金高强度钢SM490A材料的高温热物理性能参数模拟了箱型柱中的腹板与隔板电渣焊接头的温度场. 同时采用试验方法实测了电渣焊接头典型位置的热循环曲线,并观察了接头的焊缝宏观截面形状. 结果表明,计算得到的热循环曲线与实测结果十分吻合,计算得到的焊缝形状与试验结果也基本一致,验证了所开发的数值计算方法的有效性.Abstract: In order to study the welding temperature field induce by electro slag welding (ESW) of the box column plate and diaphragm of high-rising buildings, a computational approach was developed to predict welding temperature field based on MSC.Marc software. In the proposed approach, a new heat source model named half ellipsoid volumetric heat source with uniform density was developed to simulate ESW heat input. The "birth and death" element technique was used to simulate the formation of weld bead, and temperature-dependent thermo-physical properties of SM490A tested by experiment were considered in the thermal analysis. In addition, the thermal cycles at several typical positions were measured by K-type thermo-couples. The results show that the thermal cycle predicted by numerical simulation are in good agreement with that by experiments and the shape of fusion zone predicted by FE model is much similar to that obtained by the experiment. The comparison between FEM and experiment shows that the proposed approach is an effective means to predict welding temperature field for ESW joint.
-
-
[1] Dean D A, Shoichi K. Numerical simulation of welding tempera- ture field, residual stress and deformation induced by electro slag welding[J]. Computational Materials Science, 2012, 62(9): 23-34. [2] Chen C C, Liang Y C. The effects of electro slag welding on material properties of box column plates[J]. International Steel Structures, 2011, 11(2): 171-189. [3] 薛忠明, 顾 兰, 张彦华. 激光焊接温度场数值模拟[J]. 焊接学报, 2003, 24(2): 79-82. Xue Zhongming, Gu Lan, Zhang Yanhua. Numerical simulation on temperature field in laser welding[J]. Transactions of the China Welding Institution, 2003, 24(2): 79-82. [4] 黄瑞生, 刘黎明, 迟鸣声. 镁合金激光-TIG焊接温度场的红外测量与数值模拟[J]. 焊接学报, 2006, 27(10): 89-92. Huang Ruisheng, Liu Liming, Chi Mingsheng. Infrared measurement and numerical simulation of temperature[J]. Transactions of the China Welding Institution, 2006, 27(10): 89-92. [5] 王志锋, 陈佩寅, 吴 伟, 等. 厚板带极埋弧堆焊温度场的有限元模拟[J]. 焊接学报, 2009, 30(1): 89-92. Wang Zhifeng, Chen Peiyin, Wu Wei, et al. Finite element simulation of temperature field for submerged arc strip overlaying on thick plate[J]. Transactions of the China Welding Institution, 2009, 30(1): 89-92. [6] 罗 怡, 刘金合, 叶 宏, 等. AZ61镁合金真空电子束焊接温度场数值模拟[J]. 焊接学报, 2009, 30(3): 73-76. Luo Yi, Liu Jinghe, Ye Hong, et al. Numerical simulation on temperature field of electron beam welding of AZ61 magnesium alloy[J]. Transactions of the China Welding Institution, 2009, 30(3): 73-76. [7] MSC.Marc Software Corporation. MSC.Marc introductory course[M]. USA: Arcadia Publication, 2005. [8] 王宗杰. 熔焊方法及设备[M]. 北京: 机械工业出版社, 2011. [9] Deng D A, Zhou Y J, Bi T, et al. Experimental and numerical investigations of welding distortion induced by CO2 gas arc welding in thin-plate bead-on joints[J]. Materials & Design, 2013, 53: 720-729. [10] Debroy T, Szekely J, Eager T. Heat generation patterns and temperature profiles in electro slag welding[J]. Metallurgical and Materials Transactions B, 1980, 11(3): 593-605. -
期刊类型引用(8)
1. 马殿响，杜建国，樊超，马翔宇，李靖飞，孟璇. 基于Q420GJ钢丝极电渣焊接头工艺试验及数值仿真. 中国机械. 2023(21): 42-46 . 
百度学术
2. 许鑫，黎明. 焊接参数对钢板对接坡口焊温度场与残余应力的影响分析. 常州工学院学报. 2019(04): 6-12+33 . 百度学术
3. 李金华，李力，丁韦，高振坤，宋宏图，胡玉堂. 钢轨电渣焊接方法及工艺研究. 铁道建筑. 2018(09): 118-121+126 . 百度学术
4. 李金华. 电渣焊技术在钢轨焊接中的应用. 焊接技术. 2017(12): 43-47 . 百度学术
5. 孙加民，何静，邓德安. 强制冷却对电渣焊接头温度场影响的数值模拟. 焊接学报. 2016(01): 63-66+132 . 本站查看
6. 孙加民，朱家勇，夏林印，邓德安. 电渣焊接头焊接残余应力与变形的数值模拟. 焊接学报. 2016(05): 23-27+130 . 本站查看
7. 孙加民，邓德安，叶延洪，何静，夏林印. 用瞬间热源模拟Q390高强钢厚板多层多道焊T形接头的焊接残余应力. 焊接学报. 2016(07): 31-34+38 . 本站查看
8. 蔡建鹏，孙加民，夏林印，邓德安. Q345钢对接接头残余应力与变形的预测. 焊接学报. 2015(11): 61-64+68+116 . 本站查看
其他类型引用(5)
计量
- 文章访问数: 228
- HTML全文浏览量: 7
- PDF下载量: 92
- 被引次数: 13
下载:
