Strength of Materials

, Volume 50, Issue 1, pp 11–19 | Cite as

Fracture Assessment of the Weld–Base Metal Interface of High-Strength Steel Weld Joint

  • Z. P. Zhong
  • H. Liu
  • J. J. Ma

The brittle fracture of the weld joint at low stresses is controlled by high-strength steel characteristics and welding defects. Based on fracture mechanics, the fracture behavior of the weld–base metal interface of a high-strength steel weld joint was studied to reveal the critical locations of the latter. From tensile fracture experiments of 45 steel welded specimens, the load–displacement curve and the fracture modes of weld joints were obtained. The results indicate that the critical loads and fracture modes are influenced by the crack slope angle. The maximum load of interface fracture in weld joints is less than that of the failure in the base metal mainly related to the existence of initial defects in the weld joint. The fracture surface morphology was also detected. It is considered that the fracture surface is influenced by different fracture locations and different microstructure of the weld and base metals. In addition, the critical stress intensity factors of a weld interface crack were calculated based on the critical load and the finite element linear extrapolation method. The linear fracture assessment criteria were proposed, which will be applicable to safety evaluation for the weld joints of high-strength steel structures.


high-strength steel weld joint butt weld structural performance interfacial fracture 



The work is supported by the Fundamental Research Funds for the Central Universities (126545010), the supported by Southeast University, Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education (CPCSME2015-03).


  1. 1.
    J. Wang, J. D. Zhao, and Z. Y. Hu, “Review and thinking on development of building industrialization in China,” China Civil Eng. J., 49, No. 5, 1–8 (2016).Google Scholar
  2. 2.
    D. Arsiã, M. Djordjeviã, J. Zivkoviã, et al., “Experimental-numerical study of tensile strength of the high-strength steel S690QL at elevated temperatures,” Strength Mater., 48, No. 5, 687–695 (2016).CrossRefGoogle Scholar
  3. 3.
    P. Moþe, D. Beg, and J. Lopatic, “Net cross-section design resistance and local ductility of elements made of high-strength steel,” J. Constr. Steel Res., 63, No. 11, 1431–1441 (2007).CrossRefGoogle Scholar
  4. 4.
    M. K. Samal, M. Seidenfuss, E. Roos, and K. Balani, “Investigation of failure behavior of ferritic–austenitic type of dissimilar steel weld joints,” Eng. Fail. Anal., 18, No. 3, 999–1008 (2011).CrossRefGoogle Scholar
  5. 5.
    N. Guo, Z. Yang, M. Wang, et al., “Microstructure and mechanical properties of an underwater wet welded dissimilar ferritic/austenitic steel joint,” Strength Mater., 47, No. 1, 12–18 (2015).CrossRefGoogle Scholar
  6. 6.
    S. V. Kobel’skyi, S. M. Ban’ko, and V. V. Kharchenko, “Determination of stress intensity factors in the weld joint between the header and shell of PGV-1000M steam generator with a defect in the form of a cavity with a crack,” Strength Mater., 47, No. 2, 297–301 (2015).CrossRefGoogle Scholar
  7. 7.
    H. W. Lee, W. H. Choe, J. U. Park, et al., “Weld metal hydrogen assisted cracking in 50 mm TMCP steel plate with SAW process,” Sci. Technol. Weld. Joi., 11, No. 3, 243–249 (2013).CrossRefGoogle Scholar
  8. 8.
    A. Ya. Krasovskii, I. V. Orynyak, E. E. Gopkalo, “Fractography of in-service fracture of the metal in weld joint No. 111 of the steam generator of a WWER-1000 power unit,” Strength Mater., 47, No. 5, 670–678 (2015).CrossRefGoogle Scholar
  9. 9.
    P. J. Budden and I. Curbishley, “Assessment of creep crack growth in dissimilar metal welds,” Nucl. Eng. Des., 197, Nos. 1–2, 13–23 (2000).Google Scholar
  10. 10.
    R. Kandrotaitë-Janutienë and A. Baltuðnikas, “Investigation of plastic behavior of alloyed steel deformed during martensitic transformation,” Strength Mater., 48, No. 5, 696–703 (2016).CrossRefGoogle Scholar
  11. 11.
    M. K. Samal, K. Balani, M. Seidenfuss, and E. Roos, “An experimental and numerical investigation of fracture resistance behaviour of a dissimilar metal weld joint,” P. I. Mech. Eng. C - J. Mec., 223, No. 7, 1507–1523 (2009).CrossRefGoogle Scholar
  12. 12.
    C. Jang, J. Lee, J. S. Kim, et al., “Mechanical property variation within Inconel 82/182 dissimilar metal weld between low alloy steel and 316 stainless steel,” Int. J. Pres. Ves. Pip., 85, No. 9, 635–646 (2008).CrossRefGoogle Scholar
  13. 13.
    A. Laukkanen, P. Nevasmaa, U. Ehrnstén, and R. Rintamaa, “Characteristics relevant to ductile failure of bimetallic welds and evaluation of transferability of fracture properties,” Nucl. Eng. Des., 237, No. 1, 1–15 (2007).CrossRefGoogle Scholar
  14. 14.
    H. T. Wang, G. Z. Wang, F. Z. Xuan, and S. T. Tu, “An experimental investigation of local fracture resistance and crack growth paths in a dissimilar metal weld joint,” Mater. Design, 44, 179–189 (2013).CrossRefGoogle Scholar
  15. 15.
    M. T. Kirk, K. C. Koppenhoefer, and C. F. Shih, “Effect of constraint on specimen dimensions needed to obtain structurally relevant toughness measures,” in: E. M. Hackett, K.-H. Schwalbe, and R. H. Dodds (Eds.), Constraint Effects in Fracture, STP 1171, ASTM International, West Conshohocken, PA (1993).Google Scholar
  16. 16.
    GB 50661-2011. Code for Welding of Steel Structures, Chinese Standard, Implemented on August 1, 2012.Google Scholar
  17. 17.
    S. Maiti, Fracture Mechanics: Fundamentals and Applications, Cambridge University Press (2015).Google Scholar
  18. 18.
    G. P. Liang, Finite Element Language and Its Application [in Chinese], Science Press, Beijing (2013).Google Scholar

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Authors and Affiliations

  1. 1.Key Laboratory of C&PC Structures of the Ministry of EducationSoutheast UniversityNanjingChina
  2. 2.Department of Civil EngineeringShanxi UniversityTaiyuanChina

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