Zobrazeno 1 - 10
of 16
pro vyhledávání: '"S. T. Shtayura"'
Publikováno v:
Materials Science. 52:875-881
We study the acoustic properties of inhomogeneous plastically deformed specimens made of 09G2S steel. The specimens with residual strains were successively subjected to heat treatment and hydrogenation from the gas phase. After each procedure, we mea
Publikováno v:
Materials Science. 52:349-356
We study the kinetics of shear macrocracks under the conditions of fatigue fracture by transverse shear of thermally hardened 65G steel with a troostite-sorbite structure for low-, middle-, and high-amplitude cyclic loads. We plot the kinetic diagram
Autor:
S. T. Shtayura
Publikováno v:
Materials Science. 51:254-260
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 stiffne
Publikováno v:
Materials Science. 50:748-754
We propose a theoretical and experimental approach to the quantitative evaluation of the influence of hydrogen on the mechanical properties of 40Kh steel. We experimentally determine the characteristics of strength and plasticity and construct analyt
Publikováno v:
Materials Science. 50:212-216
By the method of superposition of stressed states, we deduce a formula for the stress intensity factor KІІ under the conditions of transverse shear of an I-beam specimen. The comparison of the results of calculations with the theoretical data obtai
Publikováno v:
Materials Science. 49:749-754
We propose the design of a specimen for the investigation of the fatigue fracture of steels under transverse shear. A formula for the determination of the stress intensity factor with regard for the friction of crack lips is obtained with the use of
Publikováno v:
Materials Science. 49:637-643
We determine the static crack resistance of compact Richard’s specimens made of 17G1S steel and the critical crack opening displacement under the conditions of transverse shear (mode II). The specimens are tested under cyclic loading. Richard’s s
Publikováno v:
Materials Science. 48:274-280
We have studied the stress-strain state of material in the process zone, near the crack tip in cruciform specimens made of 09G2S steel under non-proportional biaxial loading. We have obtained the strain distribution in this zone, in a domain of size
Publikováno v:
Materials Science. 47:457-461
We present the results of investigations of the influence of hydrogen on the fracture of 65G sheet spring steel. The distribution of strains is determined by the method of digital speckle correlation, the topography of the specimen surface in front o
Publikováno v:
Materials Science. 46:213-220
We propose a theoretical-experimental model of fatigue crack growth in hydrogen-containing media. The model is based on the regularities of exhaustion of energy accumulated in a material under the conditions of cyclic fracture and the influence of hy