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考虑残余应力的焊接结构多轴疲劳准则

周昊1,刘英芳2,刘刚1,黄一1

周昊1,刘英芳2,刘刚1,黄一1. 考虑残余应力的焊接结构多轴疲劳准则[J]. 焊接学报, 2017, 38(11): 41-46. doi: 10.12073/j.hjxb.20160114002
引用本文: 周昊1,刘英芳2,刘刚1,黄一1. 考虑残余应力的焊接结构多轴疲劳准则[J]. 焊接学报, 2017, 38(11): 41-46. doi: 10.12073/j.hjxb.20160114002

考虑残余应力的焊接结构多轴疲劳准则

doi: 10.12073/j.hjxb.20160114002
  • 摘要: 因随机波浪载荷及焊接残余应力的存在,海洋工程焊接结构的疲劳失效受多轴疲劳机理控制,然而目前的多轴疲劳准则对焊接残余应力关注较少,针对上述问题文中通过将不包含焊接残余应力的有限元计算应力场与焊接残余应力场线性叠加作为多轴疲劳寿命计算应力场,提出了一种基于临界面法的多轴疲劳寿命预测准则,通过对国际上已公开发表的疲劳试验数据进行有限元分析并与多轴疲劳准则MWCM对比,证明文中方法比MWCM具有更高的准确性,对于非比例载荷作用下的疲劳寿命预测效果尤为显著,同时证明了文中方法可以有效考虑焊接残余应力的影响.
  • [1] Susmel L. Multiaxial notch fatigue: from nominal to local stress-strain quantities[M]. Cambridge, UK: Woodhead Publishing Limited, 2009.[2] Maddox S J. Influence of tensile residual stresses on the fatigue behavior of welded joints in steel[C]∥ASTM. Residual Stress Effects in Fatigue. West Conshohocken: ASTM Special Technical Publication, 1982: 63-96[3] Teng T L, Fung C P, Chang P H. Effect of residual stresses on the fatigue of butt joints using thermal elasto-plastic and multiaxial fatigue theory[J]. Engineering Failure Analysis, 2003, 10(2): 131-151.[4] Fatemi A, Socie D F. A critical plane approach to multiaxial fatigue damage including out-of-Phase loading[J]. Fatigue & Fracture of Engineering Materials & Structures, 1988, 11(3): 149-165.[5] Papadopoulos I V, Davoli P, Gorla C,et al. A comparative study of multiaxial high-cycle fatigue criteria for metals[J]. International Journal of Fatigue, 1997, 19(3): 219-235.[6] Varvani-Farahani A. A new energy-critical plane parameter for fatigue life assessment of various metallic materials subjected to in-phase and out-of-phase multiaxial fatigue loading conditions[J]. International Journal of Fatigue, 2000, 22(4): 295-305.[7] Flavenot J F, Skalii N. A comparison of multiaxial fatigue criteria incorporating residual stress effects[C]∥EGF3. Biaxial and Multiaxial Fatigue. London: Mechanical Engineering Publications, 1989: 437-457.[8] Hobbacher A. Recommendations for fatigue design of welded joints and components[M]. West Berlin: Springer International Publishing, 2016.[9] Anon.Eurocode 3: design of steel structures-part 1-9: Fatigue[S]. London: Woodhead Publishing Limited, 2003.[10] 刘 刚, 黄一, 赵一阳. 基于临界面理论的焊接结构多轴疲劳寿命评估方法[J]. 船舶力学, 2013, 17(5): 494-501.Liu Gang, Huang Yi, Zhao Yiyang. Approach for multiaxial fatigue life assessment of welded structures based on critical plane theory[J]. Journal of Ship Mechanics, 2013, 17(5): 494-501.[11] Yousefi F, Witt M, Zenner H. Fatigue strength of welded joints under multiaxial loading: experiments and calculations[J]. Fatigue & Fracture of Engineering Materials & Structures, 2001, 24(5): 339-355.[12] Jen Y M, Chang L Y, Fang C F. Assessing the fatigue life of butt-welded joints under oblique loading by using local approaches[J]. International Journal of Fatigue, 2008, 30(4): 603- 613.[13] B?ckstr?m M, Siljander A, Kuitunen R,et al. Multiaxial fatigue experiments of square hollow section tube-to-plate welded joints[C]∥Proceedings of the First North European Engineering and Science Conference (NESCO I), 1997: 163-177.[14] Sonsino C M. Multiaxial fatigue of welded joints under in-phase and out-of-phase local strains and stresses[J]. International Journal of Fatigue, 1995, 17(1): 55-70.[15] Sonsino C M, Kueppers M. Multiaxial fatigue of welded joints under constant and variable amplitude loadings[J]. Fatigue & Fracture of Engineering Materials & Structures, 2001, 24(5): 309-327.[16] Siljander A, Kurath P, Lawrence F V. Non-proportional fatigue of welded structures[J]. Advances in fatigue lifetime predictive techniques, ASTM STP, 1992, 1122: 319-338.[17] Razmjoo G R. Fatigue of load-carrying fillet welded joints under multiaxial loading[J]. Fatigue: core research from TWI, Woodhead, UK, 2000(27): 63-99.[18] Lawrence F V, Burk J D, Yung J Y. Influence of residual stress on the predicted fatigue life of weldments[C]∥ASTM. Residual Stress Effects in Fatigue. West Conshohocken: ASTM special technical publication, 1982: 33-43.
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  • 收稿日期:  2016-01-14

考虑残余应力的焊接结构多轴疲劳准则

doi: 10.12073/j.hjxb.20160114002

摘要: 因随机波浪载荷及焊接残余应力的存在,海洋工程焊接结构的疲劳失效受多轴疲劳机理控制,然而目前的多轴疲劳准则对焊接残余应力关注较少,针对上述问题文中通过将不包含焊接残余应力的有限元计算应力场与焊接残余应力场线性叠加作为多轴疲劳寿命计算应力场,提出了一种基于临界面法的多轴疲劳寿命预测准则,通过对国际上已公开发表的疲劳试验数据进行有限元分析并与多轴疲劳准则MWCM对比,证明文中方法比MWCM具有更高的准确性,对于非比例载荷作用下的疲劳寿命预测效果尤为显著,同时证明了文中方法可以有效考虑焊接残余应力的影响.

English Abstract

周昊1,刘英芳2,刘刚1,黄一1. 考虑残余应力的焊接结构多轴疲劳准则[J]. 焊接学报, 2017, 38(11): 41-46. doi: 10.12073/j.hjxb.20160114002
引用本文: 周昊1,刘英芳2,刘刚1,黄一1. 考虑残余应力的焊接结构多轴疲劳准则[J]. 焊接学报, 2017, 38(11): 41-46. doi: 10.12073/j.hjxb.20160114002
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