A numerical simulation of the nucleation and evolution of localized plastic deformation in welded low-carbon steel specimens

V. A. Romanova, Ruslan Revovich Balokhonov

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5 Citations (Scopus)

Abstract

A numerical simulation of the nucleation and evolution of localized plastic deformation in welded low-carbon steel specimens was performed. A mathematical model based on a double-limit yield criterion was constructed to describe the propagation of Liiders bands. The behavior of 3D welded specimens characterized by a gradual or a stepwise change in the mechanical properties of the material in the heat-affected zone was investigated. The plastic deformation evolution pattern in the welded specimens was shown to depend on the mechanical characteristics of the material in the heat-affected zone and on the stress level near the grips of the testing machine and at the interfaces between the weld, heat-affected zone and base metal.

Original languageEnglish
Pages (from-to)66-73
Number of pages8
JournalPhysical Mesomechanics
Volume12
Issue number1-2
DOIs
Publication statusPublished - 2009
Externally publishedYes

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Keywords

  • Lüders bands
  • numerical simulation
  • stress concentration
  • stress-strain state
  • welded joints

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces

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