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收稿日期：2016-09-25
苏宇简介：1993年出生，硕士研究生；主要从事摩擦焊接相关方向研究。
基于逐层铣削法测量桥钢厚板焊缝区残余应力
邹永丰，李亚东，黄志霜，强斌
（西南交通大学土木工程学院，四川成都610031）
摘要：桥钢厚板焊接常采用多层焊，由于焊接过程中焊缝区热应力作用和金属复杂相变过程，在厚度方向上产生了变化较大的焊接残余应力。目前，桥钢厚板内部残余应力的测量暂无统一方法，数值模拟分析也存在诸多困难。采用逐层铣削法对厚度为45mm的对接焊钢板焊缝区沿焊缝方向的残余应力进行了测量，得到其沿焊缝厚度方向的具体分布情况。测量结果可为钢桥焊接残余应力数值模拟和钢桥疲劳研究提供参考。
关键词：钢桥：厚板：焊缝区；残余应力：逐层铣削法中图分类号：TG404：TU393.3
Residualstressmeasurementofsteelthickplateinweldzonebasedon
layer-removalmethod
ZouYongfeng,LiYadong,Huang Zhishuang,Qiang Bin
(School of Civil Engineering,Southwest Jiaotong University,Chengdu 610031,China)
Abstract: Multi-layer welding is widely used in the welding of thick plate for steel bridge. Because of the effect of thermal stress and metallic phase transformation, the welding residual stress is changed significantly along the direction of plate thickness. There is no uniform method to measure the residual stress so far, and it is also difficult to analyze the residual stress by numerical simulation, In this paper, the layer-removal method
基金项目：国家自然科学基金资助项目（51378430）
102016年第6期万方数据