A study on fatigue crack initiation point of load-carrying fillet welded cruciform joints

Shigenobu Kainuma, Takeshi Mori

研究成果: ジャーナルへの寄稿学術誌査読

61 被引用数 (Scopus)

抄録

Load-carrying fillet welded cruciform joints have two fatigue crack initiating points. These are located at the weld toes and weld roots, where high stress concentrations occur. The location of the fatigue crack initiation depends on the weld size, plate thickness and weld penetration. These mechanisms are easily understood. Previous experimental results have indicated that the fatigue crack originating point is also influenced by the magnitude of the stress range, but the reason for this phenomenon is not yet clear. To better understand this phenomenon, fatigue tests on welded joint specimens were performed in this study. In addition, the welding residual stresses were analyzed with a thermo-elastic-plastic finite element method. Finally, a fatigue crack propagation analysis that considered the residual stresses was performed.

本文言語英語
ページ(範囲)1669-1677
ページ数9
ジャーナルInternational Journal of Fatigue
30
9
DOI
出版ステータス出版済み - 9月 1 2008

!!!All Science Journal Classification (ASJC) codes

  • モデリングとシミュレーション
  • 材料科学(全般)
  • 材料力学
  • 機械工学
  • 産業および生産工学

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