Abstract
This paper gives the investigation results of static strength and tensile ductility of cylindrical specimens with an annular notch of different sharpness made from 35, 80, and ÉI961 steels, and VT3-1 titanium and D16T aluminum alloys. Empirical dependence of relative increase of notched specimens statical strength on the size of the stress concentration factor is determined. A link has been established between the index of locality of plastic strain ψl/ψB, characterizing the plastic properties of the material and the stress concentration factor Kt·l corresponding to the transition from viscous to quasibrittle fracture.
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Translated from Problemy Prochnosti, No. 5, pp. 74–78, March, 1991.
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Vodop'yanov, V.I., Kondrat'ev, O.B. Effect of stress concentration on strength and ductility of structural materials. Strength Mater 23, 336–341 (1991). https://doi.org/10.1007/BF01194777
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DOI: https://doi.org/10.1007/BF01194777