钢结构桥梁中特厚钢板焊接应力动态数值模拟分析  

Welding Stress Dynamic Simulation Analysis on Extra-thick Plates in Steel Bridge

作　　者：王淋[1] 张江萍[1] 王彦博[1] 刘秀伟[1] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074

出　　处：《重庆交通大学学报（自然科学版）》2008年第3期345-348,428,共5页Journal of Chongqing Jiaotong University(Natural Science)

摘　　要：钢结构中特厚钢板焊接应力的理论分析一直为人们所关注。基于有限元软件ANSYS,采用高斯热源模型加热,利用生死单元,动态模拟分析80 mm特厚钢板对接焊过程中,对多层、多道焊的温度场进行加热模拟,实现焊缝的动态生成,跟踪应力场的变化情况。分析结果与重庆观音岩长江大桥构件焊接试验结果基本一致,为特厚钢板构件的设计和制作提供有实用价值的参考依据。The theoretical analysis of welding stress in extra-thick plates has been concerned. Based on ANSYS , using Gauss heat source model heating and element of birth and death, dynamic simulating is used in analysing the butt welding process of 80mm extra-thick plates. The multi-welding of heating temperature field is simulated, achieving the weld dynamic generation and tracking the changes of the stress field. Simulation results gear with Guanyinyan Yangtze River Bridge welding test results. It offers a useful reference for the design and production of the extra-thick plates.

关 键 词：特厚钢板 模拟分析 生死单元 对接焊缝 

分 类 号：TG404[金属学及工艺—焊接]