Zobrazeno 1 - 10
of 50
pro vyhledávání: '"P. P. Voroshko"'
Autor:
P. P. Voroshko
Publikováno v:
Strength of Materials. 43:161-167
A procedure for the determination of stress intensity factors of 3D flat cracks is proposed, which uses integral identities for displacements and strains on the crack surface. New formulations of boundary problems of the mathematical theory of linear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab5bcdcbe6bced9fb7e8da566298794e
https://doi.org/10.1007/s11223-011-9282-0
https://doi.org/10.1007/s11223-011-9282-0
Autor:
P. P. Voroshko
Publikováno v:
Strength of Materials. 40:688-692
We present stress intensity factor assessment using nodal displacements of the crack surfaces determined by the finite element method for cracked bodies. The equation is solved by expanding the crack opening displacement in the Chebyshev function, wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d63c4494b16ecd5fb7558bd5a49ba115
https://doi.org/10.1007/s11223-008-9088-x
https://doi.org/10.1007/s11223-008-9088-x
Publikováno v:
Strength of Materials. 36:101-105
General methodological approaches to solving the problems of strength and life of NPP equipment and results recently obtained in this field at the Pisarenko Institute of Problems of Strength of the National Academy of Sciences of Ukraine are outlined
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c72bc4cd7218ef2ac69d68fe3eab00e6
https://doi.org/10.1023/b:stom.0000020241.16645.44
https://doi.org/10.1023/b:stom.0000020241.16645.44
Autor:
P. P. Voroshko
Publikováno v:
Strength of Materials. 35:601-607
We propose new representations of displacements, relative changes in the volume, and angles of rotation of points of a linearly elastic body via the displacements and stresses specified on its surface and deduce integral representations of the bounda
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ca43ace8d5dda929b487ab26160877b9
https://doi.org/10.1023/b:stom.0000013612.42975.56
https://doi.org/10.1023/b:stom.0000013612.42975.56
Autor:
V. V. Kharchenko, P. P. Voroshko, G. V. Stepanov, S. A. Radchenko, S. V. Romanov, A. I. Babutskii, N. A. Feofentov, I. V. Kravchenko, S. V. Kobel’skii, V. I. Kravchenko
Publikováno v:
Strength of Materials. 35:536-544
The paper describes a method and main results of a refined stress-strain state evaluation for a welded joint of the hot collector to steam generator nozzle of a nuclear power plant with a WWER-1000 reactor, which takes into account a fuller range of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::190e317f65b821b21e94cc998868697a
https://doi.org/10.1023/b:stom.0000004543.31528.98
https://doi.org/10.1023/b:stom.0000004543.31528.98
Autor:
V. I. Kravchenko, P. P. Voroshko, B. Pospiŝil, S. V. Kobel’skii, A. L. Kvitka, I. A. Klimenko
Publikováno v:
Strength of Materials. 32:257-261
We analyze the stressed state of pipeline T-joints in which the connecting pipe makes an angle of 90° or 45° with the main pipe under the action of torques and bending moments causing the out-of-plane torsion and bending of the T-joint. The influen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd52c078d60ddb9bb52b5ee28fdf76bc
https://doi.org/10.1007/bf02509853
https://doi.org/10.1007/bf02509853
Publikováno v:
Strength of Materials. 30:645-650
We analyze the stressed state of two types of T-joints in which the union makes angles of 45° and 90° with the main pipe. The character of the distribution of stresses in a T-joint illustrates the distinctive features of its operation under the act
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13814abc7f1deb48c10d2ddb05cafc1f
https://doi.org/10.1007/bf02523172
https://doi.org/10.1007/bf02523172
Publikováno v:
Strength of Materials. 30:299-302
The stressed state and stress concentration in sloping cooling circuits of the rim part of a disk of a gas-turbine engine are studied by using a three-dimensional finite-element model. It is shown that the numerical values of the stress concentration
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfb7241d2cdcb6312bb8c13e42f71f73
https://doi.org/10.1007/bf02524731
https://doi.org/10.1007/bf02524731
Autor:
P. P. Voroshko
Publikováno v:
Strength of Materials. 28:386-391
Integral identities, which can be used in direct methods of constructing resolving equations of the method of boundary elements, are obtained for basic boundary problems of the theory of elasticity. As compared with familiar methods, numerical realiz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb534522b6c663eae5733b566686636a
https://doi.org/10.1007/bf02330859
https://doi.org/10.1007/bf02330859
Publikováno v:
Strength of Materials. 23:203-210
The basic solving relationships of the finite-element method for three-dimensional nonstationary problems of heat conduction using local mixed variational formulations for an octagonal isoparametric element are obtained. To reduce the order of the sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8ed39a89525ea677ad53e9e3cf8bd9e4
https://doi.org/10.1007/bf00770814
https://doi.org/10.1007/bf00770814