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Stress Intensity Factors for Spot Welds Joining Sheets of Unequal Thickness

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Abstract

Determination of stress intensity factor (SIF) at spot welds is one of the main problems in fatigue assessment of spot-welded structures using fracture mechanics methods. After a brief overview of the issue, we suggest an improvement in determination of SIFs at spot welds between sheets of unequal thickness, by adding the contributions of transverse shear stresses on the spot weld edge. T-stress at the spot weld is also discussed. A simplified finite element model in conjunction with application of the results obtained is illustrated as well.

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REFERENCES

  • Pook, I. P. (1979). Approximate stress intensity factors obtained from simple plate bending theory. Engineering Fracture Mechanics 12, 505–522.

    Google Scholar 

  • Radaj, D. (1989). Stress singularity, notch stress and structural stress at spot welded joints. Engineering Fracture Mechanics 34, 495–506.

    Google Scholar 

  • Radaj, D. and Zhang, S. (1991). Stress intensity factos for spot welds between plates of unequal thickness. Engineering Fracture Mechanics 39, 391–413.

    Google Scholar 

  • Suo, Z. and Hutchinson, J. W. (1990). Interface crack between two elatic layers. International Journal of Fracture 43, 1–18.

    Google Scholar 

  • Tada, H., Paris, P. and Irwin, G. (1985). The Stress Analysis of Cracks Handbook. Paris Productions Incorporated and Del Research Corporation.

  • Zhang, S. (1997). Stress intensities at spot welds. International Journal of Fracture 88, pp. 167–185

    Google Scholar 

  • Zhang, S. (1999a). Stress intensities derived from stresses around a spot weld. International Journal of Fracture 99, 239–257.

    Google Scholar 

  • Zhang, S. (1999b). Recovery of notch stress and stress intensity factors in finite element modeling of spot welds. Proceedings of NAFEMS World Congress on Effective Engineering Analysis, Newport, Rhode Island, pp. 1103–1114.

  • Zhang, S. (2001). Fracture mechanics solutions to spot welds. International Journal of Fracture 112, 247–274.

    Google Scholar 

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Authors and Affiliations

  1. Research and Technology, DaimlerChrysler AG, Stuttgart, Germany

    Shicheng Zhang

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  1. Shicheng Zhang
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Zhang, S. Stress Intensity Factors for Spot Welds Joining Sheets of Unequal Thickness. International Journal of Fracture 122, L119–L124 (2003). https://doi.org/10.1023/B:FRAC.0000005406.06773.95

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  • DOI: https://doi.org/10.1023/B:FRAC.0000005406.06773.95

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