摘要
基于焊接残余应力的测量,介绍了常用的测量方法,重点阐述了小孔释放法的测量原理、推导了焊接残余应力的计算公式以及为提高测量精度而进行的释放系数的标定和塑性变形公式的修正,同时还分析了释放应力小孔间距、边距以及应力释放时间对测量结果的影响。
Based on measure of weld residual stress, normal measure method was introduces, the principle of measure with little hole method was expounded, and a formula for calculating weld residual stress was deduced, along with the calibration of coefficient and the reform of plastic deform for improving measure precision. Meanwhile, the effects of the distance between holes, distance between hole and side and the time of stress releasing on measure result were analyzed.
出处
《热加工工艺》
CSCD
北大核心
2007年第15期67-69,共3页
Hot Working Technology
基金
国防基础科研项目(B0720060844)
关键词
焊接残余应力
小孔法
系数标定
塑性变形修正
weld residual stress
little hole method
calibration of coefficient
reform of plastic deform
作者简介
周方明（1964-），男，江苏高淳人，教授，博士，硕士生导师．从事焊接设备与质量控制方面教学、学术研究与工程应用。近年来获得省部级二、三等奖4项，发表学术论文30余篇；电话：13861357326；E-mail：hainancn@163．com.
