Ductile fracture of BS4360-50D steel and the relationship of J-integral and COD

  • Zheng C
  • Radon J
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Abstract

The relationship of two parameters characterizing fracture toughness, J-integral and COD, is analysed and applied in the investigation of a low-alloy mild steel. It is shown that the value of the parameter M in the formula J = Mσyδ decreases with temperature, but is not influenced by the ratio a/W. Suitable equations to estimate the value of M are presented. © 1984.

Author-supplied keywords

  • J-integral
  • crack opening displacement
  • fracture mechanics
  • low-alloy mild steel

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Authors

  • C. Q. Zheng

  • J. C. Radon

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