[1]张祥,曾涛.基于ANSYS压力容器筒体与平板封头焊缝残余应力有限元分析[J].焊管,2009,32(5):22-24.[doi:1001-3938(2009)05-0022-03]
 ZHANG Xiang,ZENG Tao.The Finite Element Analysis on the Weld Residual Stress of the Pressure Vessel Cylinder and Plate Dome Based on ANSYS[J].,2009,32(5):22-24.[doi:1001-3938(2009)05-0022-03]
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基于ANSYS压力容器筒体与平板封头焊缝残余应力有限元分析
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
32
期数:
2009年第5期
页码:
22-24
栏目:
试验与研究
出版日期:
2009-05-28

文章信息/Info

Title:
The Finite Element Analysis on the Weld Residual Stress of the Pressure Vessel Cylinder and Plate Dome Based on ANSYS
文章编号:
1001-3938(2009)05-0022-03
作者:
张祥曾涛
(四川理工学院  机械工程学院,四川 自贡 643000)
Author(s):
ZHANG XiangZENG Tao
(Mechanical Engineering Institute,Sichuan University of Science & Engineering,Zigong 643000,Sichuan,China)
关键词:
压力容器焊接焊缝耦合场残余应力
Keywords:
pressure vesselweldingweldcoupling fieldresidual stress
分类号:
TG441
DOI:
1001-3938(2009)05-0022-03
文献标志码:
A
摘要:
焊接常用于压力容器等特种设备制造中。在焊接过程中,高温移动热源及之后的快速冷却,使得在焊缝及其附近区域产生了残留的拉应力,由此产生焊接变形和残余应力。为预测焊接变形,采用有限元软件ANSYS中生死单元技术对压力容器筒体与平板封头单面焊焊接过程进行数值模拟,得出焊缝焊接残余应力、温度场及位移场的分布情况,经过分析可以得出:在焊缝区及熔合区温度极高,远离焊缝温度峰值急剧下降;在熔合区焊接残余应力达最大值,焊根处残余应力较小,在热影响区,沿焊缝方向多为拉应力,垂直焊缝方向多为压应力。
Abstract:
Welding is frequently used in the pressure vessel manufacture.In the welding process,moving high temperature and subsequent rapid cooling cause residual tensile stress at the weld and adjacent fields,hence generate welding deformation and residual stress.In order to predict welding deformation,adopting birth-dead skills of the finite element software ANSYS to simulate one-side welding process of the pressure vessel cylinder and plate dome,we can grasp information of weld residual stress,temperature field and displacement field distribution.We can get the results through analysis that high temperature will appear at the weld metal area and the fusion area,if apart from the welding line,the temperature peak value rapidly drop.The welding residual stress achieve maximum at the fusion area,but less at the root of weld,at the heat-affected zone,the pull stress will appear along the welding line direction,and pressure stress will appear at the vertical direction of the weld.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:张祥(1984-),男,湖北黄冈人,在读研究生,主要研究方向为化工过程机械。
收稿日期:2008-10-18
更新日期/Last Update: