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Determining fracture toughness from the results of fatigue tests in circular bending

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Strength of Materials Aims and scope

Conclusions

  1. 1.

    A method has been proposed for determining the stress concentration factor in a cylindrical specimen with unilateral crack loaded in cantilever bending, based on the method of measuring the elastic ompliance of a specimen. Results obrained by this method for 15G2AFDps steel and boiler steel are in good agreement with test data for specimens in eccentric tension.

  2. 2.

    It was es tablished that the value of the dimensionless, coefficient Y2 at one and the same relative crack length\(\bar l\) has little dependence on the relative area\(\bar F\) in a wide range of variation of the latter and the crack shape.

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Literature Cited

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Authors
  1. V. T. Troshchenko
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  2. V. V. Pokrovskii
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  3. A. V. Prokopenko
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Additional information

Institute of Strength Problems, Academy of Sciences of the Ukrainian SSR, Kiev. Translated from Problemy Prochnosti, No. 1, pp. 3–8, January, 1977.

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Troshchenko, V.T., Pokrovskii, V.V. & Prokopenko, A.V. Determining fracture toughness from the results of fatigue tests in circular bending. Strength Mater 9, 1–7 (1977). https://doi.org/10.1007/BF01534604

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  • DOI: https://doi.org/10.1007/BF01534604

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