Main role of heat affected zone in mechanisms of deformation and fracture of welded joints at mesolevel

V. S. Pleshanov, S. A. Kobzeva, V. V. Kibitkin, N. A. Lebedeva, V. E. Panin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Strain-localization in welded joints is investigated in low-carbon steel polycrystals under static tensile and cycle fatigue loading. The basic types of mesostructures formed at different stages of continuity disruption are described. The formation of a band of localized plastic deformation has been found to precede that of the main fatigue crack. It is shown that the mechanical state of a loaded welded joint can be diagnosed experimentally and its residual lifetime can be predicted.

Original languageEnglish
Title of host publicationMultiscaling in Applied Science and Emerging Technology, Fundamentals and Applications in Mesomechanics: Proceedings of the Sixth International Conference for Mesomechanics
EditorsG.C. Sih, T.B. Kermanidis, S.G. Pantelakis
Pages196-202
Number of pages7
Publication statusPublished - 2004
EventMultiscaling in Applied Science and Emerging Technology; Fundamentals and Applications in Mesomechanics:Proceedings of the Sixth International Conference for Mesomechanics - Patras, Greece
Duration: 31 May 20044 Jun 2004

Other

OtherMultiscaling in Applied Science and Emerging Technology; Fundamentals and Applications in Mesomechanics:Proceedings of the Sixth International Conference for Mesomechanics
CountryGreece
CityPatras
Period31.5.044.6.04

Keywords

  • Displacement vector field
  • Fatigue crack length rate
  • Localized-deformation band
  • Mesolevel
  • Physical mesomechanics
  • Stress concentrator
  • Welded joint
  • Zone of plastic elongation

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Pleshanov, V. S., Kobzeva, S. A., Kibitkin, V. V., Lebedeva, N. A., & Panin, V. E. (2004). Main role of heat affected zone in mechanisms of deformation and fracture of welded joints at mesolevel. In G. C. Sih, T. B. Kermanidis, & S. G. Pantelakis (Eds.), Multiscaling in Applied Science and Emerging Technology, Fundamentals and Applications in Mesomechanics: Proceedings of the Sixth International Conference for Mesomechanics (pp. 196-202)