Advertisement

International Journal of Steel Structures

, Volume 14, Issue 4, pp 769–776 | Cite as

Effects of ultrasonic peening on fatigue strength of out-of-plane gusset joints

  • Koji KinoshitaEmail author
  • Akito Imamura
  • Yoshihiro Watanabe
  • Mitsuru Handa
Article

Abstract

Effect of high frequency peening treatment with a small radius tip pin, which is less than 3mm radius tip pin, still remains unclear, although the effect of ultrasonic impact treatment on fatigue strength has been investigated. The objective of this study is to investigate the effect of ultrasonic peening with a 1.5mm radius tip pin on fatigue strength of out-of-plane gusset welded joints. Plate bending fatigue tests of those joints carried out. The results show that the peening can improve fatigue strength, when mean stress does not change or already changes before the peening is carried out. It also shows that the effect of the ultrasonic impact peening become less with increasing mean stress after the ultrasonic peening was carried out, and when the ultrasonic peening is not sufficient for the weld toe.

Keywords

ultrasonic peening out-of-plane gusset welded joints fatigue tests residual stress 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Anami, K., Miki, C., Tani, H., and Yamamoto, H. (2000). “Improving fatigue strength of welded joints by hammer peening and TIG-dressing.” Journal of Structure Mechanics and Earthquake Engineering, JSCE, No. 647, pp. 57s–68s.Google Scholar
  2. JSSC (1993). Fatigue Design Recommendation for Steel Structures. Japanese Society of Steel Construction (in Japanese).Google Scholar
  3. Kakiichi, T., Yamada, K., Ishikawa, T., Tanaka, R., Shimanuki, H., and Nose, T. (2009) “Plate bending fatigue test of out-of-plane gusset joints treated by ultrasonic peening.” Proc. JSCE 64th Annual Assembly, JSCE, I-148, pp. 295–296 (in Japanese).Google Scholar
  4. Kinoshita, K., and Imamura A. (2010). “Investivation of fatigue strength evaluation of out-of-plane gusseted welded joints treated by ultrasonic peening.” Proc. Constructional Steel, 18, pp. 127–132 (in Japanese).Google Scholar
  5. Kinoshita, K., Imamura A., Watanabe Y., and Handa, M. (2014a). “Fatigue strength improvement of out-of-plane gusset joints under plate bending by ultrasonic peening.” Proc. Seventh International Conference on Bridge Maintenance, Safety and Management and Life-Cycle Optimization (IABMAS2014), pp. 1382–1385.Google Scholar
  6. Kinoshita, K., Imamura A., Watanabe Y., and Handa, M. (2014b). “Fatigue strength of out-of-plane gusset treated by ultrasonic needle peening with a small radius tip pin.” Steel Construction Engineering, 21(83), pp. 11–18 (in Japanese).Google Scholar
  7. Mori, T., Shimanuki, H., and Tanaka, M. (2012). “Effect off UIT on fatigue strength of web-gusset welded joints considering service condition of steel structures.” Welding in the World, 56 (9–10), pp.141–149.CrossRefGoogle Scholar
  8. Roy, S. and Fisher, J. W. (2005) “Enhancing fatigue strength by ultrasonic impact treatment.” International Journal of Steel Structures, 5(3), pp. 241–252.Google Scholar
  9. Tominaga, T., Matsuoka, K., and Satoh, Y. (2007). “Fatigue improvement method for weld repaired crane runway girder by ultrasonic impact treatment.” Steel Construction Engineering, JSSC, 14(55), pp. 47–58 (in Japanese).Google Scholar
  10. Yamada, K., Ojio, T., Torii, A., Bail, B., Sasaki, Y., and Yamada, S. (2008). “Influence of shot blasting on fatigue strength of out-of-plane gusseted specimens under bending.” Journal of Structural Engineering, JSCE, 54A, pp. 522–529 (in Japanese).Google Scholar

Copyright information

© Korean Society of Steel Construction and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Koji Kinoshita
    • 1
    Email author
  • Akito Imamura
    • 2
  • Yoshihiro Watanabe
    • 3
  • Mitsuru Handa
    • 3
  1. 1.Department of Civil EngineeringGifu UniversityGifuJapan
  2. 2.Construction DepartmentMitsui Zosen Steel Structures Engineering Co., LtdChibaJapan
  3. 3.Toyo SeikoAichiJapan

Personalised recommendations