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Effect of shape of stress concentrator on mechanical properties of sheet steel 25KhGSA in biaxial tension

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Strength of Materials Aims and scope

Conclusions

  1. 1.

    The strength of steel 25KhGSA (ts = 2 mm) in the low- and high-tempered states amounts to 1.05σu.

  2. 2.

    The shape of the stress raiser, the structure of the metal, and the type of stress state have an important effect on the sensitivity of the material to stress concentrations, particularly in the low-tempered state.

  3. 3.

    Analysis of the strain state of smooth specimens and specimens with stress concentrators of different form showed that the performance of the steel in uniaxial tension is determined mainly by its capacity for deformation in the longitudinal direction (e1), while in biaxial tension it is determined by its capacity for deformation in two directions: longitudinal (e1) and normal (e3).

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Literature cited

  1. B. A. Drozdovskii, L. M. Pevzner, and A. S. Tarantova, “Effect of carbon content on the strength of sheet structural steel in biaxial tension,” Metalloved. Term. Obrab. Met., No. 5, 21–28 (1964).

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  5. Ya. B. Fridman, T. K. Zilova, and N. I. Demina, Investigation of Plastic Deformation and Fracture by the Method of Rolled-On Grids [in Russian], Oborongiz, Moscow (1962).

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Authors and Affiliations

  1. Vladimir Polytechnic Institute, USSR

    N. I. Demina, A. K. Volkov & Z. K. Zastol'skaya

Authors
  1. N. I. Demina
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  2. A. K. Volkov
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  3. Z. K. Zastol'skaya
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Additional information

Translated from Problemy Prochnosti, No. 3, pp. 51–53, March, 1980.

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Demina, N.I., Volkov, A.K. & Zastol'skaya, Z.K. Effect of shape of stress concentrator on mechanical properties of sheet steel 25KhGSA in biaxial tension. Strength Mater 12, 313–316 (1980). https://doi.org/10.1007/BF01129080

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  • DOI: https://doi.org/10.1007/BF01129080

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