|Titolo:||An experimental–numerical approach for the analysis of internally cracked railway wheels|
|Data di pubblicazione:||2008|
|Citazione:||An experimental–numerical approach for the analysis of internally cracked railway wheels / GUAGLIANO M; PAU M. - In: WEAR. - ISSN 0043-1648. - 265 (9-10)(2008), pp. 1387-1395.|
|Abstract:||In this paper the problem of the evaluation of the criticality of an internal crack in a railway wheel is dealt with. In particular this paper considers pressure distributions experimentally measured with a technique based on the ultrasonic reflection at the contact interface. A numerical approach is developed to calculate the stress intensity factors of internal cracks under the action of the experimental pressure distributions. Some cases are described and critically discussed: the differences with respect of the corresponding Hertzian pressure distribution are evidenced and the importance of the transversal eccentricity of the crack with respect of the contact patch is underlined.|
|Tipologia:||1.1 Articolo in rivista|
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