Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Károly Váradi"'
Autor:
Gyula Szabó, Károly Váradi
Publikováno v:
Acta Technica Jaurinensis, Vol 11, Iss 2, Pp 84-103 (2018)
The aim of this article is to model mechanical behavior of a filament-wound, rubber-based composite tube subjected to uniaxial tension at low temperature by test experiments and FE simulations. Uniaxial tensile tests at sub-zero temperature (-40 °C)
Externí odkaz:
https://doaj.org/article/38771e91a4a848018a636e10844967b3
Autor:
Gyula Szabó, Károly Váradi
Publikováno v:
Advanced Composites Letters, Vol 28 (2019)
The aim of this study is to investigate the global buckling of a relatively long composite cord–rubber tube subjected to axial compression and its cross-sectional instability due to bending by a macromechanical nonlinear finite element (FE) model (
Externí odkaz:
https://doaj.org/article/e3b2af5b992341ec94ed231ca9fa6a0d
Autor:
Márton Gróza, Károly Váradi
Publikováno v:
Advances in Mechanical Engineering, Vol 9 (2017)
The crack initiation and propagation phases of the fatigue life of a plate specimen with a center hole are analyzed. The local transient stress–strain relationship is investigated by means of finite element simulations with a nonlinear kinematic ha
Externí odkaz:
https://doaj.org/article/70459ec421fc448b848929d2f94f410f
Autor:
Nándor Békési, Károly Váradi
Publikováno v:
Advances in Tribology, Vol 2013 (2013)
The present paper describes an experimental test and a coupled contact-thermal-wear analysis of a railway wheel/brake block system through the braking process. During the test, the friction, the generated heat, and the wear were evaluated. It was fou
Externí odkaz:
https://doaj.org/article/21af803598374b1d9a7c43bcee93d367
Autor:
Gyula Szabó, Károly Váradi
Publikováno v:
Journal of Reinforced Plastics and Composites. 42:393-404
The aim of this study is to examine displacements, strains and stresses of a railway composite cord-rubber air brake tube undergoing uniaxial tension by microscale modelling. The micromodel is based on the macromodels (by matching the boundary condit
Autor:
Gyula Szabó, Károly Váradi
Publikováno v:
Periodica Polytechnica Mechanical Engineering. 66:325-335
The aim of this study is to examine displacements, strains and stresses as well as to predict possible failure mechanisms arising at the yarn-matrix level of a test specimen of a railway composite cord-rubber air brake tube undergoing uniaxial tensio
Autor:
Károly Váradi, Gyula Szabó
Publikováno v:
ECMS
In certain cases, rolling stocks and railway vehicle components, i.e. brake tubes need to operate under extreme conditions such as at sub-zero temperature (e.g. -40°C) and on a reverse curve track, when displacements of the suspension points of the
Publikováno v:
Joint Diseases and Related Surgery. 30:106-111
OBJECTIVES This study aims to compare mechanical stability of osteosynthesis (plate and screw fixation) alone versus the same method supplemented with hip arthroplasty (hybrid solution) for double column fractures in elderly. PATIENTS AND METHODS Mec
Publikováno v:
Joint Diseases and Related Surgery. 29:2-7
OBJECTIVES This study aims to investigate if the stabilization of iliac wing fractures influences the stability of the acetabular osteosynthesis, if surgical fixation is the choice of treatment, and which technique to be used. MATERIALS AND METHODS I
Autor:
György Szabó, Károly Váradi
Publikováno v:
Modern Mechanical Engineering. :11-30
In this paper the behavior of an O-ring made of NBR rubber was investigated under extreme conditions. The effect of the extreme initial compression, operating pressure and extreme temperature conditions were examined. The rubber material was tested i