Notch bluntness effects on fracture toughness of a modified S690 steel at 150 °C

J. S. Kim, N. O. Larrosa, A. J. Horn, Y. J. Kim, R. A. Ainsworth

研究成果: Article査読

20 被引用数 (Scopus)

抄録

This paper addresses the effect of blunt defects on the structural integrity assessment of steels. Smooth tensile, notched bar tensile and multi-specimen single edge notched bend tests with various notch acuities have been performed and show an increase in effective ductile fracture toughness with increasing notch radius. A ductile fracture model has been shown to be capable of predicting the specimen responses including the local variation of ductile crack extension through the thickness. An empirical fit developed to describe the effect of notch radius on cleavage fracture toughness has been examined and found to be also capable of describing the effect of notch radius on ductile fracture toughness.

本文言語English
ページ(範囲)250-267
ページ数18
ジャーナルEngineering Fracture Mechanics
188
DOI
出版ステータスPublished - 2018 2月 1
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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