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

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 language	English
Title of host publication	Multiscaling in Applied Science and Emerging Technology, Fundamentals and Applications in Mesomechanics: Proceedings of the Sixth International Conference for Mesomechanics
Editors	G.C. Sih, T.B. Kermanidis, S.G. Pantelakis
Pages	196-202
Number of pages	7
Publication status	Published - 2004
Event	Multiscaling in Applied Science and Emerging Technology; Fundamentals and Applications in Mesomechanics:Proceedings of the Sixth International Conference for Mesomechanics - Patras, Greece Duration: 31 May 2004 → 4 Jun 2004

Other

Other	Multiscaling in Applied Science and Emerging Technology; Fundamentals and Applications in Mesomechanics:Proceedings of the Sixth International Conference for Mesomechanics
Country	Greece
City	Patras
Period	31.5.04 → 4.6.04

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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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)

Main role of heat affected zone in mechanisms of deformation and fracture of welded joints at mesolevel. / Pleshanov, V. S.; Kobzeva, S. A.; Kibitkin, V. V.; Lebedeva, N. A.; Panin, V. E.

Multiscaling in Applied Science and Emerging Technology, Fundamentals and Applications in Mesomechanics: Proceedings of the Sixth International Conference for Mesomechanics. ed. / G.C. Sih; T.B. Kermanidis; S.G. Pantelakis. 2004. p. 196-202.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Pleshanov, VS, Kobzeva, SA, Kibitkin, VV, Lebedeva, NA & Panin, VE 2004, Main role of heat affected zone in mechanisms of deformation and fracture of welded joints at mesolevel. in GC Sih, TB Kermanidis & SG 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, Multiscaling in Applied Science and Emerging Technology; Fundamentals and Applications in Mesomechanics:Proceedings of the Sixth International Conference for Mesomechanics, Patras, Greece, 31.5.04.

Pleshanov VS, Kobzeva SA, Kibitkin VV, Lebedeva NA, Panin VE. Main role of heat affected zone in mechanisms of deformation and fracture of welded joints at mesolevel. In Sih GC, Kermanidis TB, Pantelakis SG, editors, Multiscaling in Applied Science and Emerging Technology, Fundamentals and Applications in Mesomechanics: Proceedings of the Sixth International Conference for Mesomechanics. 2004. p. 196-202

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

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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.",

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

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AB - 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.

KW - Displacement vector field

KW - Fatigue crack length rate

KW - Localized-deformation band

KW - Mesolevel

KW - Physical mesomechanics

KW - Stress concentrator

KW - Welded joint

KW - Zone of plastic elongation

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