We plot the diagrams of axial and tangential stresses under proportional biaxial loading used to induce the stressed states with different stiffnesses in tubular nonhydrogenated and hydrogenated (10 МРа) specimens. It is shown that, as the stiffness of the stressed state increases (χ = 0.52) under biaxial loading, the yield and fracture stresses of nonhydrogenated specimens caused by tension increase by 24% as compared with the case of uniaxial tension. In hydrogenated specimens, these stresses increase only by up to 13%. As the stiffness of the stressed state increases, the intensities of the yield and fracture stresses in cross sections of the specimens decrease. In the case of fracture of hydrogenated specimens, the indicated intensities are higher than for nonhydrogenated specimens.
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References
A. A. Lebedev, V. P. Lamashevskii, and I. V. Makovetskii, “Low-temperature deformation and strength of alloyed steels under complex stress conditions,” Probl. Prochn., No. 4, 28–36 (2010); English translation: Strength Mater., 42, No. 4, 380–386 (2010).
V. P. Lamashevskii, “Influence of the type of stressed state on the deformation and strength of 20Kh25N20S2 steel,” Visn. Tekh. Univ. Ukr. “KPI.” Ser. Mashynobuduvannya, No. 58, 165–170 (2010).
G. S. Pisarenko and A. A. Lebedev, Deformation and Strength of Materials in Complex Stressed States [in Russian], Naukova Dumka, Kiev (1976).
A. A. Lebedev, B. I. Koval’chuk, F. F. Giginyak, and V. P. Lamashevskii, Mechanical Properties of Structural Materials in Complex Stressed States [in Russian], “In Yure” Publ. House, Kiev (2003).
V. P. Lamashevskii, I. V. Makovetskii, and Yu. N. Volkov, “A method of mechanical tests of constructional materials in the complex stressed state under high-temperature conditions,” Probl. Prochn., No. 11, 111–114 (1987); English translation: Strength Mater., 19, No. 11, 1588–1591 (1987).
Ya. L. Ivanyts’kyi and P. S. Kun', Crack Resistance of Structural Materials under Complex Loading [in Ukrainian], Spolom, Lviv (2013).
DSTU 4131-2002. Metallic Pipes. Methods for Tensile Testing at Room Temperature [in Ukrainian], Derzhstandart Ukrainy, Kyiv (2004).
DSTU 2550-1994. Methods for Mechanical Testing in Complex Stressed States under the Conditions of Short-Term and Long-Term Loading [in Ukrainian], Derzhstandart Ukrainy, Kyiv (1994).
GOST 1497-84 / ST SEV 471-77. Metals. Methods for Tensile Testing [in Russian], Izd. Standartov, Moscow (1985).
S. T. Shtayura, R. B. Kostiv, and I. A. Verhun, “Construction of the fracture diagrams of 20 steel under biaxial loading of cylindrical hollow specimens and the action of hydrogen,” Fiz.-Khim. Mekh. Mater., Special Issue, No. 10, Part 1, 194–198 (2014).
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Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 51, No. 2, pp. 98–103, March–April, 2015.
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Shtayura, S.T. Influence of Stiffness of the Stressed State Under Biaxial Loading of Tubular Specimens on the Strength Characteristics of 20 Steel in Hydrogen. Mater Sci 51, 254–260 (2015). https://doi.org/10.1007/s11003-015-9837-5
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DOI: https://doi.org/10.1007/s11003-015-9837-5