金属学报  2008, Vol. 44 Issue (7): 848-852

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焊接接头残余应力及蠕变损伤的有限元模拟

张国栋;周昌玉

南京工业大学机械与动力工程学院

Finite Element Simulation for Welding Residual Stress and Creep Damage of Welded Joint

Guo-Dong ZHANG

南京工业大学

张国栋; 周昌玉 . 焊接接头残余应力及蠕变损伤的有限元模拟[J]. 金属学报, 2008, 44(7): 848-852 .
, . Finite Element Simulation for Welding Residual Stress and Creep Damage of Welded Joint[J]. Acta Metall Sin, 2008, 44(7): 848-852 .

摘要 参考文献 相关文章 Metrics 全文: PDF(1737 KB)   摘要: 基于大型有限元软件Abaqus及其用户子程序(Umat)功能, 开发了焊接残余应力与蠕变损伤耦合计算程序, 对高温用焊接接头残余应力作用下的蠕变损伤行为进行有限元模拟, 并与无焊接残余应力状态下的蠕变损伤情况 进行比较. 研究结果表明, 在炉管焊接状态下, 焊接残余应力最大值集中在焊缝和热影响区处, 并且轴向与环向 残余应力较高. 在高温环境下, 焊接接头初始态焊接残余应力较高, 虽然在短时间内应力松弛到较低的水平, 但 其蠕变损伤仍较大程度地受焊接残余应力的影响, 蠕变损伤分布与焊接残余应力的分布基本一致. 关键词 ： Cr5Mo钢,  焊接残余应力,  蠕变损伤     Abstract：A coupling calculation method for welding residual and creep damage has been developed by ABAQUS finite element code and its user subroutine UMAT. According to this method, the effect of welding residual stress for Cr5Mo steel welded joint on creep damage was simulated at high temperature. At the same time the creep damage without welding residual stress was compared with that under the consideration of welding residual stress. The research results show that the maximum residual stress all concentrate in weld metal (WM) and heat-affected zone (HAZ). And the axial and hoop stress is higher than radial stress. At high temperature, although the welding residual stress is much higher at initial stage and the residual stress is relaxed in a short time, the welded joint creep damage is greatly influenced by the residual stress. The distribution of creep damage is same as the distribution of welding residual stress. The presented work provides the probability for the high temperature strength design and life assessment of high temperature component. Key words： welding residual stress    creep damage    stress relaxation    finite element simulation 收稿日期: 2007-09-26      ZTFLH:  TG111.8   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 张国栋 周昌玉 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2008/V44/I7/848 [1]Hertzman S,Sandstrom R,Wale J.High Temp Technol, 1987;5(1):33 [2]Lundin C D,Khan K K,Yang D,Zieke W.Weld Res Counc Bull,1990;354:1 [3]Viswanathan R,Foulds J R.ASME Pressure Vessels Pip Div Publ PVP,1995;303:187 [4]Hyde T H,Sun W,Williams J A.Int J Press Vessels Pip- ing,2002;79:799 [5]Hyde T H,Becket A A,Song Y,Sun W.Comput Mater Sci,2006;35:35 [6]Hyde T H,Sun W,Becket A A,Williams J A.Int J Press Vessels Pip,2004;81:1 [7]Hyde T H,Sun W.Int J Press Vessels Pip,2002;79:331 [8]Gong J M,Tu S D,Ling X,Yu H M.J Mater Eng,2000; 11:9 (巩建鸣，涂善东，凌祥，喻红梅．材料工程，2000；11：9) [9]Kachanov L M.USSUR Div Eng Sci,1958;8:26. [10]Zhang G D,Zhou C Y.Trans China Weld Inst,2007; 28(8):99 (张国栋，周昌玉．焊接学报，2007；28(8)：99) [11]Qian Z M.Master Dissertation,Nanjing University of Technology,2005 (钱珍梅．南京工业大学硕士学位论文，2005) [12]Zhang G D,Zhou C Y.Trans China Weld Inst,2006; 27(12):85 (张国栋，周昌玉．焊接学报，2006；27(12)：85) [1] 王重阳, 韩世伟, 谢峰, 胡龙, 邓德安. 固态相变和软化效应对超高强钢焊接残余应力的影响[J]. 金属学报, 2023, 59(12): 1613-1623. [2] 骆文泽, 胡龙, 邓德安. SUS316不锈钢马鞍形管-管接头的残余应力数值模拟及高效计算方法开发[J]. 金属学报, 2022, 58(10): 1334-1348. [3] 李索, 陈维奇, 胡龙, 邓德安. 加工硬化和退火软化效应对316不锈钢厚壁管-管对接接头残余应力计算精度的影响[J]. 金属学报, 2021, 57(12): 1653-1666. [4] 姜霖, 张亮, 刘志权. Al中间层和Ni(V)过渡层对Co/Al/Cu三明治结构靶材背板组件焊接残余应力的影响[J]. 金属学报, 2020, 56(10): 1433-1440. [5] 唐文书,肖俊峰,李永君,张炯,高斯峰,南晴. 再热恢复处理对蠕变损伤定向凝固高温合金γ′相的影响[J]. 金属学报, 2019, 55(5): 601-610. [6] 陈云翔 严伟 胡平 单以银 杨柯. T/P91钢在高应力条件下蠕变行为的CDM模型模拟[J]. 金属学报, 2011, 47(11): 1372-1377. [7] 邓德安 清岛祥一. 用可变长度热源模拟奥氏体不锈钢多层焊对接接头的焊接残余应力[J]. 金属学报, 2010, 46(2): 195-200. [8] 张国栋; 周昌玉; 薛吉林 . 内压与焊接残余应力共同作用下高温管道蠕变有限元分析[J]. 金属学报, 2008, 44(10): 1271-1276 . [9] 蒋文春; 巩建鸣; 唐建群; 陈虎; 涂善东 . 焊接残余应力对氢扩散影响的有限元模拟[J]. 金属学报, 2006, 42(11): 1221-1226 . [10] 岳珠峰 . 平头压痕蠕变损伤实验的有限元模拟分析[J]. 金属学报, 2005, 41(1): 15-. [11] 岳珠峰; 吕震宙 . 双剪切试样在镍基单晶合金蠕变变形损伤和寿命研究中的应用[J]. 金属学报, 2002, 38(8): 809-813 . [12] 岳珠峰;吕震宙;郑长卿. 镍基单晶高温合金的蠕变损伤规律研究[J]. 金属学报, 1995, 31(8): 370-375. Viewed Full text Abstract Cited   Shared      Discussed