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The influences of the cyclic force magnitude and frequency on the effectiveness of the vibratory stress relief process on a butt welded connection

  • S. M. Ebrahimi
  • M. FarahaniEmail author
  • D. Akbari
ORIGINAL ARTICLE
  • 20 Downloads

Abstract

Welding residual stresses are considered as significant factors for the reduction of fatigue life and load bearing of welded structures. In this article, characterization of a low-temperature stress-relief method called vibratory stress relief process was investigated. In this regard, welding of a butt joint of two steel plates was simulated and induced welding residual stresses were calculated. An experimental residual stress measurement was conducted to verify the numerical results. It was established that the simulated residual stresses are in good agreement with the measured results obtained from the hole drilling strain gauge measurements. In the following, the vibratory stress relief process of the welded joint was simulated using finite element method (FEM). It was observed that by controlling the process parameters, a notable reduction in the residual stress is achievable. Effects of magnitude and frequency of the cyclic force on the effectiveness of the stress relief process were studied. The results indicated that by increasing the applied load frequency up to 95% of the natural frequency, the longitudinal residual stress decreased more than 80%. Also, it has been shown that by increasing the force magnitude, the welding residual stresses were reduced drastically.

Keywords

Welding residual stress Vibratory stress relief FEM Hole drilling strain gauge measurement 

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References

  1. 1.
    Zargar SH, Farahani M, Besharati Givi M (2016) Numerical and experimental investigation on the effects of submerged arc welding sequence on residual distortion of fillet welded plates. Proc Inst Mech Eng B J Eng Manuf 230:654–661.  https://doi.org/10.1177/0954405414560038 CrossRefGoogle Scholar
  2. 2.
    Farahani M, Sattari-Far I, Akbari D, Alderliesten R (2012) Numerical and experimental investigation of the effects of residual stresses on crack behavior in aluminum 6082-T6. Proc Inst Mech Eng C J Mech Eng Sci 226:2178–2191.  https://doi.org/10.1177/0954406211432667 CrossRefGoogle Scholar
  3. 3.
    Farahani M, Sattari-Far I, Akbari D, Alderliesten R (2013) Effect of residual stresses on crack behavior in single edge bending specimen. Fatigue Fract Eng Mater Struct 36:115–126.  https://doi.org/10.1111/j.1460-2695.2012.01704.x CrossRefGoogle Scholar
  4. 4.
    Yu C, Chen Z, Wang J, Yan S, Yang L (2012) Effect of welding residual stress on plastic buckling of axially compressed cylindrical shells with patterned welds. Proc Inst Mech Eng C J Mech Eng Sci 226:2381–2392.  https://doi.org/10.1177/0954406211433976 CrossRefGoogle Scholar
  5. 5.
    Sabokrouh M, Hashemi I, Farahani MR (2015) Experimental study of weld microstructure properties in assembling of natural gas transmission pipeline. Proc Inst Mech Eng B J Eng Manuf 229(4):580–590.  https://doi.org/10.1177/0954405415579581 Google Scholar
  6. 6.
    Claxton RA (1974) Vibratory stress relieving - its advantages and limitations as an alternative to thermal treatment. Heat Treat Met 1:131–137Google Scholar
  7. 7.
    Dawson R, Moffat DG (1980) Vibratory stress relief: a fundamental study of its effectiveness. J Eng Mater Technol 102:169–176.  https://doi.org/10.1115/1.3224793 CrossRefGoogle Scholar
  8. 8.
    Gnirss G (1988) Vibration and vibratory stress relief. Historical development, theory and practical application. Weld World 26:284–291Google Scholar
  9. 9.
    Luh C, Hwang RM (1998) Evaluating the effectiveness of vibratory stress relief by a modified hole-drilling method. Int J Adv Manuf Technol 14:815–823.  https://doi.org/10.1007/BF01350766 CrossRefGoogle Scholar
  10. 10.
    Munsi A, Waddell AJ, Walker CA (2001) Vibratory stress relief—an investigation of the torsional stress effect in welded shafts. J Strain Anal Eng Des 36:453–464.  https://doi.org/10.1243/0309324011514610 CrossRefGoogle Scholar
  11. 11.
    Munsi A, Waddell AJ, Walker CA (2001) Modification of welding stresses by flexural vibration during welding. Sci Technol Weld Join 6:133–138.  https://doi.org/10.1179/136217101101538668 CrossRefGoogle Scholar
  12. 12.
    Munsi A, Waddell AJ, Walker CA (2001) Modification of residual stress by post-weld vibration. Mater Sci Technol 17:601–605.  https://doi.org/10.1179/026708301101510294 CrossRefGoogle Scholar
  13. 13.
    Kuang L (2002) Finite element prediction of residual stress relief in a two-dimensional cantilever beam. Dissertation, Alfred UniversityGoogle Scholar
  14. 14.
    Aoki S, Nishimura T, Hiroi T, Hirai S (2007) Reduction method for residual stress of welded joint using harmonic vibrational load. Nucl Eng Des 237:206–212.  https://doi.org/10.1016/j.nucengdes.2006.06.004 CrossRefGoogle Scholar
  15. 15.
    Zhao XC, Zhang YD, Zhang HW, Wu Q (2008) Simulation of vibrational stress relief after welding based on FEM. Acta Metall Sin (Engl Lett) 21:289–294.  https://doi.org/10.1016/S1006-7191(08)60051-4 CrossRefGoogle Scholar
  16. 16.
    Kwofie S (2009) Plasticity model for simulation, description and evaluation of vibratory stress relief. Mater Sci Eng A 516:154–161.  https://doi.org/10.1016/j.msea.2009.03.014 CrossRefGoogle Scholar
  17. 17.
    Kwofie S (2011) Description and simulation of cyclic stress-strain response during residual stress relaxation under cyclic load. Procedia Eng 10:293–298.  https://doi.org/10.1016/j.proeng.2011.04.051 CrossRefGoogle Scholar
  18. 18.
    Wang JS, Hsieh CC, Lin CM, Chen EC, Kuo CW, Wu W (2014) The effect of residual stress relaxation by the vibratory stress relief technique on the textures of grains in AA 6061 aluminum alloy. Mater Sci Eng A 605:98–107.  https://doi.org/10.1016/j.msea.2014.03.037 CrossRefGoogle Scholar
  19. 19.
    Akbari D, Farahani MR, Soltani N (2012) Effects of the weld groove shape and geometry on residual stresses in dissimilar butt-welded pipe. J Strain Anal Eng Des 47:73–82.  https://doi.org/10.1177/0309324711434681 CrossRefGoogle Scholar
  20. 20.
    Farahani M, Sattari-Far I (2011) Effects of residual stresses on crack-tip constraints. Scientia Iranica B 18:1267–1276.  https://doi.org/10.1016/j.scient.2011.11.024 CrossRefGoogle Scholar
  21. 21.
    Sattari-Far I, Farahani MR (2009) Effects of the weld groove shape and pass number on residual stresses in butt-welded pipes. Int J Press Vessel Pip 86:723–731.  https://doi.org/10.1016/j.ijpvp.2009.07.007 CrossRefGoogle Scholar
  22. 22.
    Hilber HM, Hughes TJR, Taylor RL (1977) Improved numerical dissipation for time integration algorithms in structural dynamics. Earthq Eng Struct Dyn 5:283–292CrossRefGoogle Scholar
  23. 23.
    Rao D, Wang D, Chen L, Ni C (2007) The effectiveness evaluation of 314L stainless steel vibratory stress relief by dynamic stress. Int J Fatigue 29:192–196.  https://doi.org/10.1016/j.ijfatigue.2006.02.047 CrossRefGoogle Scholar
  24. 24.
    Jurcius A, Valiulis AV, Cernasejus O et al (2010) Influence of vibratory stress relief on residual stresses in weldments and mechanical properties of structural steel joint. J Vibroengineering 12(1):133–141Google Scholar

Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Mechanical Engineering, College of EngineeringUniversity of TehranTehranIran
  2. 2.Faculty of Mechanical EngineeringTarbiat Modares UniversityTehranIran

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