Effect of thermal ageing of CF8M on multi-axial ductility and application to fracture toughness prediction

J. Y. Jeon, Y. J. Kim, J. W. Kim, S. Y. Lee

研究成果: Article査読

11 被引用数 (Scopus)

抄録

This paper proposes a method to predict the thermal ageing effect on fracture toughness of CF8M cast stainless steel. The proposed method is based on multi-axial fracture strain combined with finite element damage analysis to simulate ductile tearing. Multi-axial fracture strain loci of un-aged and aged CF8M are determined by analyzing notched bar tensile test. It is shown that the thermal ageing effect on multi-axial fracture strain loci can be characterized by one constant. It is further shown that J-resistance curves of un-aged and aged CF8M can be predicted well from finite element damage analysis using multi-axial fracture strain loci. Implication of present results to practical application of crack assessment of aged cast stainless steels is discussed.

本文言語English
ページ(範囲)1466-1477
ページ数12
ジャーナルFatigue and Fracture of Engineering Materials and Structures
38
12
DOI
出版ステータスPublished - 2015 12
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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