全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
工程力学  2014 

Q690高强钢管焊接残余应力数值模拟

DOI: 10.6052/j.issn.1000-4750.2013.04.0365, PP. 108-115

Keywords: Q690高强钢管,焊接残余应力,数值分析,生死单元,热-结构耦合分析

Full-Text   Cite this paper   Add to My Lib

Abstract:

该文重点研究Q690焊接高强钢管截面纵向残余应力分布模式,利用商业有限元分析软件ANSYS对其进行数值模拟,运用其中的“生死单元”和热-结构耦合分析功能来模拟焊接过程,以管径与壁厚为变量,设计3组共12个有限元模型。通过对模型的数值分析,得到每个模型的截面纵向残余应力分布形式,经过对比分析得出其规律,并提出Q690焊接高强钢管截面纵向残余应力的简化分布模式。结果表明,其分布模式与Wagner提出的分布模式接近,但Q690高强钢管的纵向残余压应力峰值与其屈服强度的比值仅为0.2,要明显小于普通钢管纵向残余压应力峰值与其屈服强度的比值0.35。

References

[1]  班慧勇, 施刚, 石永久, 王元清. 超高强度钢材焊接截面残余应力分布研究[J]. 工程力学, 2008, 25(增刊II): 57-61.Ban Huiyong, Shi Gang, Shi Yongjiu, Wang Yuanqing. Study on the residual stress distribution of Ultra-high- strength-steel welded sections [J]. Engineering Mechanics, 2008, 25(Suppl II): 57-61. (in Chinese)
[2]  陈骥. 钢结构稳定理论与设计[M]. 北京: 科学出版社, 2003: 55-60.Chen Ji. Stability of steel structures theory and design [M]. Beijing: Science Press, 2003: 55-60. (in Chinese)
[3]  陈绍蕃. 钢结构设计原理[M]. 北京: 科学出版社, 2005: 36-45. Chen Shaofan. Principles of steel structure design [M]. Beijing: Science Press, 2005: 36-45. (in Chinese)
[4]  施刚, 王元清, 石永久. 高强高度钢材轴心受压构件的受力性能[J]. 建筑结构学报, 2009, 30(2): 93-97. Shi Gang, Wang Yuanqing, Shi Yongjiu. Behavior of high strength steel columns under axial compression [J]. Journal of Building Structures, 2009, 30(2): 93-97. (in Chinese)
[5]  沈祖炎, 徐忠根. 厚板焊接柱的?曲线研究[J]. 同济大学学报, 1993, 21(2): 145-154. Shen Zuyan, Xu Zhonggen. The ? curve research of the thick plate welding column [J]. Journal of Tongji University, 1993, 21(2): 145-154. (in Chinese)
[6]  Rasmussen K J R, Hancock G J. Plate slenderness limits for high strength steel sections [J]. Journal of Constructional Steel Research, 1992, 23(1): 73-96.
[7]  Beg D, Hlandnik L. Slenderness limit of class 3 I cross-sections made of high strength steel [J]. Journal of Constructional Steel Research, 1996, 38(8): 201-207.
[8]  Usami T, Fukumoto Y. Local and overall buckling of welded box columns [J]. Journal of the Structural Division, 1982, 108(ST3): 525-542.
[9]  Nishino F, Ueda Y, Tall L. Experimental investigation of the buckling of plates with residual stresses. Test methods for compression members [C]. ASTM Special Technical Publication No.419, Philadelphia, PA: American Society for Testing and Materials, 1967: 12-30.
[10]  赵锐. 焊接残余应力的数值模拟及控制消除研究[D]. 大连: 大连理工大学, 2007: 18-19.Zhao Rui. Study of welding residual stress’s numerical simulation and relieving [D]. Dalian: Dalian University of Technology, 2007: 18-19. (in Chinese)
[11]  鄢秀庆. 残余应力对T型圆管相贯节点承载力性能影响研究[D]. 重庆: 重庆大学, 2009: 21-22.Yan Xiuqing. The Study on influence of residual stress on bearing capacity of T-type CHS joints [D]. Chongqing: Chongqing University, 2009: 21-22. (in Chinese)
[12]  CEN (European Committee for Standardization) EN 1993-1-2 Eurocode 3: Design of steel structures-part 1.2: General rules-structural fire design [S]. London: Published by SETO, 2005.
[13]  程久欢, 陈利, 于有生. 焊接热源模型的研究进展[J]. 焊接技术, 2004, 33(1): 13-15.Cheng Jiuhuan, Chen Li, Yu Yousheng. Research progress of the welding heat source model [J]. Welding Technology, 2004, 33(1): 13-15. (in Chinese)
[14]  郭培军. 水火弯板加工自动化关键技术研究[D]. 大连: 大连理工大学, 2005: 21-22.Guo Peijun. Study on key techniques of automatic processing for line heating [D]. Dalian: Dalian University of Technology, 2005: 21-22. (in Chinese)
[15]  Chin-Hyung Lee, Kyong-Ho Chang. Numerical investigation on the behavior of circumferentially butt-welded steel circular hollow section flexural members [J]. Journal of Structural Engineering, 2011, 137(12): 1395-1404.
[16]  董柏平. 圆钢管双向压弯稳定承载力分析[D]. 上海:同济大学, 2009: 35-36.Dong Baiping. Stability analysis of compound bending pipe steel [D]. Shanghai: Tongji University, 2009: 35-36. (in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133