Zobrazeno 1 - 10
of 13
pro vyhledávání: '"H. P. Marchenko"'
Publikováno v:
Nauka ta progres transportu, Vol 70, Iss 4, Pp 41-49 (2017)
Purpose. The formation of crack-like defects in rails of railway tracks is a serious problem for engineering practice because of the danger of creating emergency situations. The purpose of this work is to establish theoretically the characteristic an
Externí odkaz:
https://doaj.org/article/76e5e9ddbac54da4823622bc6e49860a
Publikováno v:
Engineering Fracture Mechanics. 206:452-462
Investigation of crack-like surface defects on running surfaces of railway rails was carried out using the Keer-Bryant model scheme. For this purpose by singular integral equation method, the contact problem for an elastic half-plane with an edge cra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91155a46339760812c58942493d2b9cf
https://doi.org/10.1016/j.engfracmech.2018.12.017
https://doi.org/10.1016/j.engfracmech.2018.12.017
Publikováno v:
Materials Science. 52:760-767
We study a plane problem of the theory of elasticity for a circular disk containing a randomly located arc-shaped crack under the action of a rotating load. The problem is reduced to a singular integral equation, which is solved numerically by the me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea292082a15edfa4e511004c65d28e24
https://doi.org/10.1007/s11003-017-0019-5
https://doi.org/10.1007/s11003-017-0019-5
Publikováno v:
Materials Science. 51:235-243
We study the influence of longitudinal compressive residual stresses on the elastic state of a railroad head damaged by a surface crack under the conditions of rolling contact. For this purpose, we solve a two-dimensional contact problem of the theor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fea94c1b726cf3cab72f32dfc42bd1a
https://doi.org/10.1007/s11003-015-9835-7
https://doi.org/10.1007/s11003-015-9835-7
Autor:
H. P. Marchenko
Publikováno v:
Materials Science. 46:64-69
The stressed state of a rail damaged with crack is studied by the method of singular integral equations in the presence of longitudinal residual stresses. The values of the stress intensity factors are obtained for different angles of orientation of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4dfe66f31aa54422f95d234894a53c4
https://doi.org/10.1007/s11003-010-9264-6
https://doi.org/10.1007/s11003-010-9264-6
Autor:
O. P. Datsyshyn, H. P. Marchenko
Publikováno v:
Materials Science. 44:22-34
We present a survey of works dealing with the stress intensity factors (SIF) for shallow edge cracks formed in elastic half planes subjected to the action of Hertzian loads moving along the boundaries of the planes. The numerical data on the SIF obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb3c089d811bc2cde59038814bc705c6
https://doi.org/10.1007/s11003-008-9039-5
https://doi.org/10.1007/s11003-008-9039-5
Publikováno v:
Materials Science. 40:484-490
For the evaluation of the residual service life of materials according to their crack resistance by using the equations of complete diagram of fatigue fracture, it is recommended to introduce the conventional threshold crack growth rate υth. We deve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a93862572fd5b92229cb7f32f1bbaf1
https://doi.org/10.1007/s11003-005-0065-2
https://doi.org/10.1007/s11003-005-0065-2
Publikováno v:
Materials Science. 37:1-11
Within the framework of a two-dimensional mathematical model, we study the development of a surface macrocrack in the course of unidirectional rolling under the conditions of dry friction and wetting. The damaged body in a rolling couple is modeled b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77986d64f48c9109bab36402237d2730
https://doi.org/10.1023/a:1012348218441
https://doi.org/10.1023/a:1012348218441
Publikováno v:
International Journal of Fracture. 101:347-363
A contact problem in elasticity theory for an isotropic half-plane with a set of curvilinear cracks, into which a rigid punch with the foundation of convex shape is indented, is considered. Coulomb friction is assumed to exist between the punch and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e7b408ba4a62118bf706508ca2abb6e
https://doi.org/10.1023/a:1007530123470
https://doi.org/10.1023/a:1007530123470
Publikováno v:
Materials Science. 31:667-678
We consider a contact problem of the theory of elasticity for an isotropic half plane with a system of curvilinear cracks and a rigid punch pressed into the half plane. We assume that the base of the punch has an arbitrary convex shape, that either t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df684d44667ad83331c8d03adfdf2230
https://doi.org/10.1007/bf00558587
https://doi.org/10.1007/bf00558587