Propagation of a Fatigue Crack on the Surface of Side Frame of a Freight Bogie under Irregular Operating Loads

Autor:	D. V. Rudavs’kyi, М. S. Shefer, Yu. І. Kanyuk
Rok vydání:	2020
Předmět:	Surface (mathematics) Structural material Materials science business.industry 020209 energy Mechanical Engineering Frame (networking) Fatigue testing 02 engineering and technology Structural engineering Condensed Matter Physics Bogie 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Solid mechanics 0202 electrical engineering electronic engineering information engineering General Materials Science business Residual service life
Zdroj:	Materials Science. 56:174-180
ISSN:	1573-885X 1068-820X
Popis:	We study the kinetics of propagation of fatigue cracks on the surface of side frame of a rail car with regard for the stochastic nature of the operating load. Its dependence on the initial geometry of the crack is established. Moreover, under given loading conditions, we determine the shape of semielliptic contour of the fatigue crack characterized by the highest growth rate into the depth of the frame wall. We also formulate a mathematical model suitable for the evaluation of the residual service life of the side frame containing a surface cracklike defect with given initial area.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d2469f703ceb10869849c975523cd54d https://doi.org/10.1007/s11003-020-00412-2 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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