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  1. No Access

    Article

    Influence of the Long-Term Operation of Gas Pipelines on the Cyclic Crack-Growth Resistance of 17G1S Steel

    We establish the kinetic regularities of crack propagation under low-, medium-, and high-amplitude cyclic tensile loads in 17G1S steel taken from the “Dashava–Minsk” gas main pipelines after 40 yr of operation...

    E. V. Kharchenko, S. Klysz, V. M. Palyukh, O. E. Kunta… in Materials Science (2017)

  2. No Access

    Article

    Mode I and Mode II Cyclic Crack Resistance of Wheel Steel

    The characteristics of the mode I and mode II cyclic crack resistance of model wheel steel are compared. The effect of heat treatment of test steel on its microstructure parameters, as well as strength and cyc...

    V. V. Kulyk, T. M. Lenkovs’kyi, O. P. Ostash in Strength of Materials (2017)

  3. No Access

    Article

    Investigation of the Kinetics of Fatigue Macrocracks Under Transverse Shear

    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 ...

    Ya. L. Ivanyts’kyi, T. M. Lenkovs’kyi, I. A. Verhun, S. T. Shtayura in Materials Science (2016)

  4. No Access

    Article

    Influence of the Friction of Crack Faces on the Cyclic Crack-Growth Resistance of 65G Steel Under Mode II Loading

    We study the fracture of 65G steel under cyclic mode-II loading of beam specimens with lateral cracks, experimentally determine the friction coefficient of crack faces for specimens made of steel with troostit...

    T. M. Lenkovs’kyi in Materials Science (2015)

  5. No Access

    Article

    Determination of the Local Strains Near Stress Concentrators by the Digital Image Correlation Technique

    We analyze the specific features of determination of the local strains in materials in the vicinity of stress concentrators of different radii by the digital image correlation method. The dependences of the cr...

    Ya. L. Ivanyts’kyi, Yu. V. Mol’kov, P. S. Kun’, T. M. Lenkovs’kyi… in Materials Science (2015)

  6. No Access

    Article

    Determination of the Stress Intensity Factor for a Transverse Shear Crack in a Beam Specimen

    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 calculat...

    P. S. Kun, S. T. Shtayura, T. M. Lenkovs’kyi in Materials Science (2014)

  7. No Access

    Article

    Methods for the Construction of the Kinetic Diagrams of Fatigue Fracture for Steels Under the Conditions of Trаnsverse Shear with Regard for the Friction of Crack Lips

    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 o...

    Ya. L. Ivanyts’kyi, T. M. Lenkovs’kyi, V. M. Boiko, S. T. Shtayura in Materials Science (2014)

  8. No Access

    Article

    Determination of the Parameters of Crack Resistance for 17g1s Steel Under Transverse Shear

    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 tes...

    Ya. L. Ivanyts’kyi, S. T. Shtayura, T. M. Lenkovs’kyi, Yu. V. Mol’kov in Materials Science (2014)

  9. No Access

    Article

    Influence of hydrogen on the fracture resistance of 65G sheet steel

    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 topo...

    Ya. L. Ivanyts’kyi, S. T. Shtayura, Yu. V. Mol’kov, T. M. Lenkovs’kyi in Materials Science (2012)