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On a relationship between stretched zone parameters and fracture toughness of ductile structural steels

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Abstract

Quantitative stereofractographic analysis of the stretched zone at the crack tip is performed on specimens of two ductile steels used for determining fracture toughness. The effect of temperature, loading rate, stress-state mode and specimens size on the stretched zone formation is studied. A correlation is obtained of the stretched-zone height and width with fracture toughness of materials and the crack tip opening displacement value which is determined by means of various mathematical models.

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Authors and Affiliations

  1. Institute for Problems of Strength, Academy of Sciences of the Ukr. SSR, Timiryazev str., 2, 252014, Kiev 14, USSR

    A. J. Krasowsky & V. A. Vainshtok

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  1. A. J. Krasowsky
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  2. V. A. Vainshtok
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Krasowsky, A.J., Vainshtok, V.A. On a relationship between stretched zone parameters and fracture toughness of ductile structural steels. Int J Fract 17, 579–592 (1981). https://doi.org/10.1007/BF00681558

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  • DOI: https://doi.org/10.1007/BF00681558

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