Analytical study focusing on stress triaxiality on factor of brittle fracture during earthqakes in steel bridge bents

Hiroshi Tamura, Eiichi Sasaki, Hitoshi Yamada, Hiroshi Katsuchi

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

This study investigated on the cause of brittle fracture during earthquakes from the viewpoint of structural peculiarities focusing on the stress triaxiality. The target structure is the actually fractured steel rigid bent of a highway bridge. From the investigations using nonlinear finite element analysis, it was confirmed that high stress triaxiality was generated at a point supposed as fracture origin depending on the geometry of weld bead, in which the level of stress triaxiality at the point increases in the case of bead toe radius is small or two bead leg lengths are unequal.

Original languageEnglish
Pages (from-to)420-434
Number of pages15
JournalDoboku Gakkai Ronbunshuu A
Volume66
Issue number3
DOIs
Publication statusPublished - 2010 Dec 1

Keywords

  • Brittle fracture during earthquakes
  • Steel bent
  • Stress triaxiality
  • Weld bead geometry

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

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