1. 毕业设计（论文）的内容和要求

本课题针对某厂服役的制氢转化炉管进行局部更换后的新旧炉管焊接接头焊接性能进行研究，通过力学性能试验掌握服役炉管和新炉管材料在不同温度下的力学性能数据，使用abaqus有限元软件对炉管焊接过程进行数值模拟，研究焊接残余应力的分布规律，为新旧炉管的焊接工作提供支持。

要求学生主要完成以下工作： ①阅读文献25篇以上，其中英文5篇以上； ②英文翻译（3000字以上）：1篇； ③开题报告：1份； ④实习报告：1份； ⑤毕业论文：1篇； ⑥图纸要求：cad图纸不少于3a1。

论文要求条理清楚，文句通顺，图文并茂，层次分明。

2. 参考文献

[1] M N James, D J Hughes, Z Chen. Residual stresses and fatigue performance. Engineering Failure Analysis, 2007, 14(2): 384-395. [2] T N Nguyen, M A Wahab. The effect of weld geometry and residual stresses on the fatigue of welded joints under combined loading. Journal of Materials Processing Technology, 1998, 77(1-3): 201-208. [3] J Mathar. Determination of residual stress by measuring the deformation around drilled holes. Transaction of American Society of Mechanical Engineering, 1934, 56: 249-254. [4] 张小鹏, 王娜. 基于大型炉体焊接残余应力测试的盲孔法研究. 力学与实践, 2007, 29(3): 45-49. [5] C C Weng , S C Lo. Measurement of residual stresses in welded steel joints using hole drilling method. Materials Science and Technology, 1992, 8(3): 213-218. [6] S Shamachary, J M Thomas, W R Martin et al. Residual stress measurement with focused acoustic waves and direct comparison with X-ray diffraction stress measurements. Materials Science and Engineering A, 2005, 399(1-2): 84-91. [7] J W H Price, A Paradowska, S Joshi. Residual stresses measurement by neutron diffraction and theoretical estimation in a single weld bead. International Journal of Pressure Vessels and Piping, 2006, 83(5): 381-387. [8] 上田幸雄, 山川武人. 有限要素法による热弹塑性举动解析. 焊接学会志, 1973, 12 (6) : 302. [9] E F Rybicki , D W Schmueser , R W Stonesifer et al. Finite-element Model for Residual Stresses and Deformatios in Girth-butt Welded Pipes. Transactions of the ASME Journal of Pressure Vessel Technology, 1978, 100(3): 256-262. [10] E F Rybicki, R B Stonesifer. Computation of residual stress due to multipass welds in piping systems. Transactions of the ASME Journal of Pressure Vessel Technology, 1979, 101(2): 149-154. [11] R Weiss. Residual stresses and strength of friction welded ceramic/metal joints. Welding Journal, 1998, 77(3): 115-122. [12] Y J Chao, X H Qi. Thermal and thermo-mechanical modeling of friction stir welding of aluminum alloy 6061-T6. Journal of Materials Processing and Manufacturing Science, 1998, 7(2): 215-233. [13] H K Zahedul, A K Jamil, P R Anthony et al. Predicting residual thermal stresses in friction stir welded metals. Journal of Materials Processing Technology, 2006, 174(1-3): 195-203. [14] H W Zhang, Z Zhang, J T Chen. The finite element simulation of the friction stir welding process. Materials Science and Engineering A, 2005, 403(1-2): 340-348. [15] G A Moraitis, G N Labeas. Residual stress and distortion calculation of laser beam welding for aluminum lap joints. Journal of Materials Processing Technology, 2008, 198(1-3): 260-269. [16] S K Cho, Y S Yang, K J Son et al. Fatigue strength in laser welding of the lap joint. Finite Elements in Analysis and Design, 2004, 40(9-10): 1059-1070. [17] H Lu, X S Liu, J G Yang et al. Ultrasonic stress evaluation on welded plates with Lcr wave. Science and Technology of Welding and Joining, 2008, 13(1): 70-74. [18] P Dong, J Zhang, J K Hong et al. Finite element and experimental study of residual stresses in a multi-pass repair weld. Welding Research Council Bulletin, 2000, 455: 22-28. [19] D George, D J Smith, P J Bouchard. Evaluation of through wall residual stresses in stainless steel weld repairs. Materials Science Forum, 2000, 347: 646-651. [20] T L Teng, P H Chang, K H Chao. Finite element analysis of circular patch welds. International Journal of Pressure Vessels and Piping, 2000, 77(11): 643-650.

3. 毕业设计（论文）进程安排

起讫日期 设计（论文）各阶段工作内容 备 注 2018-1-13 至 2018-1-27 认真地阅读本任务书，明确自己的学习任务，同时根据自己的任务，查阅中外文献。

2018-2-24 至 2018-3-10 完成实习报告，查阅文献，完成文献综述以及英文原版文献的翻译工作。

撰写并完成开题报告。