焊管2024，Vol.47Issue(5)：26-32,39,8.DOI:10.19291/j.cnki.1001-3938.2024.05.004
基于热弹塑性有限元法的双腹加筋板焊接顺序研究
Research on Welding Sequences of Double Web Stiffened Plates based on Thermal Elastic-plastic Finite Element Method
摘要
Abstract
In order to understand the effect of welding sequence on the residual stress and deformation of the double web stiffened plate,based on the thermal elastic-plastic finite element method,the finite element software Abaqus was used to simulate the welding of the double web stiffened plate,and the effect of welding sequence on the residual stress and deformation of the double web stiffened plate was analyzed.Shell element and solid element were used respectively to model the distance from the weld zone and weld zone of the stiffened plate to improve the computational efficiency,and the linear constraint between the freedom of shell element and solid element was established.The welding residual stress and deformation of the stiffened plate under synchronous welding of double web and continuous welding on both sides were calculated and compared.There were 17 welding sequences in total.The results show that the residual stress and angle deformation of the double web stiffened plate are smaller than those of the continuous welding.The amplitude of angle displacement of synchronous welding of the double web stiffened plate is reduced by 47.1%compared with that of continuous welding.关键词
热弹塑性有限元法/双腹加筋板/焊接变形/残余应力Key words
thermal elastic-plastic finite element method/double web stiffened plate/welding deformation/residual stress分类
矿业与冶金引用本文复制引用
崔虎威,朱兴华,张朋..基于热弹塑性有限元法的双腹加筋板焊接顺序研究[J].焊管,2024,47(5):26-32,39,8.基金项目
国家自然科学基金项目"循环载荷下基于弹性安定临界状态的船体梁极限强度研究"(项目编号52001040) （项目编号52001040）
重庆市自然科学基金面上项目"基于弹性安定临界状态的船体加筋板极限承载性能研究"(项目编号cstc2021jcyj-msxmX0944) （项目编号cstc2021jcyj-msxmX0944）
重庆市教委科学技术研究项目"基于增量热弹塑性理论的船体结构极限强度研究"(项目编号KJZD-K202300710). （项目编号KJZD-K202300710）
