ISSN: 0354-7965; eISSN: 3042-3163; UDC: 621.791; DOI: 10.65156

Welding and welded structures, 2022, Vol. 67, Issue 4, pp. 187-191


Experimental determination of residual stresses in structure by hole drilling method

Manjgo Mersida1, a, Vuherer Tomaž2, Manjgo Mirza2, Buzić Meri3

  • 1Univerzitet “Džemal Bijedić” u Mostaru Mašinski fakultet, BiH
  • 2Univerza u Mariboru, Fakultet za strojništvo, Slovenija
  • 3Univerzitet u Beogradu, Mašinski fakultet, Srbija

  • Emailamersida.manjgo@unmo.ba

Abstract

A very important segment, which occurs as a result of welding, is the occurrence of residual stresses in welded structures. The effects of residual stresses can be beneficial or harmful to the structure, depending on their size, sign, and stress distribution in relation to the stresses caused by the external load itself. Therefore, the examination of residual stresses is very important because they significantly affect the formation and growth of cracks, the appearance of brittle fractures, material fatigue, etc. The paper presents the test procedure for measuring residual stresses by the method of "hole drilling" and the possibility of practical application of knowledge about residual stresses in order to improve the quality of machine parts and the structure itself.


Keywords

deformation, residual stresses, rosette


Acknowledgements

The paper was originally published in the Proceedings of the 31st Conference with International Participation Welding 2020, held in Kladovo, Serbia, from October 13 to 16, 2021.


References

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