Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Valentyn Skalsky"'
Autor:
Valentyn Skalsky, Mykhaylo Student, Oleh Mokryy, Waldemar Dudda, Yevhen Kharchenko, Halyna Chumalo, Volodymyr Hvozdetskyi
Publikováno v:
Diagnostyka, Vol 22, Iss 3, Pp 51-57 (2021)
The surface layers of low-carbon steel metal subjected to shot peening were studied. The velocity of Rayleigh surface waves of various frequencies in the range of 3-9 MHz by the phase-pulse method using contact piezoelectric transducers measured. The
Externí odkaz:
https://doaj.org/article/bae099220b3345738c7d8ca10fabdc66
Autor:
Mykhaylo Student, Oleh Mokryy, Halyna Chumalo, Valentyn Skalsky, Volodymyr Hvozdetskyi, Waldemar Dudda, Yevhen Kharchenko
Publikováno v:
Diagnostyka. 22:51-57
Autor:
Valentyn Skalsky, Olena Stankevych
Publikováno v:
Wave Motion. 72:142-153
The solution of a dynamic problem for calculation of a displacement field on a half-space surface caused by an internal mode I crack opening is presented. The problem is reduced to the system of boundary integral equations (BIEs). The equations of mo
Autor:
Olena Stankevych, Valentyn Skalsky
Publikováno v:
Engineering Fracture Mechanics. 164:24-34
Acoustic emission (AE) signals obtained from static loading tests on different structural materials were processed by wavelet transform (WT) technique. Wavelet analysis is used to determine new relevant descriptors in order to improve the characteriz
Publikováno v:
Wave Motion. 50:326-333
A nonstationary axisymmetric problem concerning mode-III elastic wave generation in an elastic cracked half-space is considered. The problem is formulated in the Fourier time transform domain. An integral representation of displacements is selected i
Publikováno v:
Engineering Fracture Mechanics. 77:759-767
In the paper a problem on the radiation of waves of acoustic emission (АЕ) during formation of penny-shaped crack in aluminium alloy elastic body under tensile and twisting loading is considered. By the method of integral transforms, the problem is
Publikováno v:
Engineering Fracture Mechanics. 68:1317-1333
An important scientific and technical problem that could be solved using acoustic emission (AE) is the possibility of inspecting nucleation and sub-critical growth of internal crack-like defects in structure elements caused, for example, by hydrogen
Publikováno v:
Engineering Fracture Mechanics. 54:387-394
The method of accelerated evaluation of the threshold value of stress intensity factor Klscc in materials under stress corrosion cracking by registration of the crack jumps is proposed. It is based on the model of subcritical jump-like propagation of