Zobrazeno 1 - 8
of 8
pro vyhledávání: '"T. M. Lenkovs'kyi"'
Publikováno v:
Materials Science. 52:827-833
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 and from the intact (original) pip
Publikováno v:
Strength of Materials. 49:256-262
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 cyclic crack resistance characteristics, is
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:
T. M. Lenkovs’kyi
Publikováno v:
Materials Science. 50:682-686
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 troostite structure, and plot the kinetic diagram
Publikováno v:
Materials Science. 50:488-495
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 critical local strains on the spacing used
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. 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