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Influence of inelastic strains on the fatigue limit of metals during bending

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Conclusions

  1. 1.

    The calculated values of the relative difference between bending and tension-compression fatigue limits (on a base of 107 cycles) due to inelastic cyclic strains obtained for most of the materials investigated do not exceed 5% which is considerably less than the experimental values. The only exceptions are certain high-ductility austenitic and low-alloy steels.

  2. 2.

    At stresses corresponding to endurances of 104–105 cycles a substantial (up to 40%) difference between real and nominal stresses due to inelastic strains was observed in the case of the carbon, austenitic, and low-alloy steels strained in cyclic bending; this must be taken into account in designing for strength and in constructing models of fatigue fracture of metals.

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Authors
  1. V. T. Troshchenko
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  2. L. A. Khamaza
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Additional information

Institute of Strength Problems, Academy of Sciences of the Ukrainian SSR, Kiev. Translated from Problemy Prochnosti, No. 4, pp. 3–9, April, 1976.

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Troshchenko, V.T., Khamaza, L.A. Influence of inelastic strains on the fatigue limit of metals during bending. Strength Mater 8, 387–392 (1976). https://doi.org/10.1007/BF01528090

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  • DOI: https://doi.org/10.1007/BF01528090

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