电焊机2024，Vol.54Issue(2)：77-82,6.DOI:10.7512/j.issn.1001-2303.2024.02.12
SMA490BW耐候钢焊接与焊后热处理残余应力的数值模拟
Numerical Simulation Analysis of Residual Stress in SMA490BW Welding and Post-Weld Heat Treatment
户迎灿 1王秋影 1邱培现 1许骏 1廖子文2
作者信息
- 1. 中车青岛四方机车车辆股份有限公司,山东 青岛 266311
- 2. 西南交通大学 材料科学与工程学院, 四川 成都 610031
- 折叠
摘要
Abstract
SMA490BW weathering steel is usually joined by welding.Residual stress will be generated during the welding process,which has a great impact on engineering application.In industry,annealing heat treatment is often used to reduce re-sidual stress.This paper establishes a finite element model of the welding process and post-weld heat treatment process of SMA490BW,the finite element simulation of the residual stress field of welding and post-weld heat treatment were carried out,and it was proven correct through test.By introducing the CREEP constitutive model of the material,the Norton-Bailey exponential equation is used to simulate the creep behavior of the material during post-weld heat treatment,and the effect of heat treatment on the welding residual stress is obtained.The research results show that:using the CREEP constitutive model,introducing the creep behavior of material can better simulate the stress and strain changes during the post-weld heat treatment of the welded workpiece,and the simulated residual stress values are in good agreement with the measured values.关键词
SMA490BW耐候钢/热处理/残余应力/数值模拟Key words
SMA490BW weathering steel/heat treatment/residual stress/numerical simulation分类
矿业与冶金引用本文复制引用
户迎灿,王秋影,邱培现,许骏,廖子文..SMA490BW耐候钢焊接与焊后热处理残余应力的数值模拟[J].电焊机,2024,54(2):77-82,6.
