Thermal cracking in railroad vehicle wheels subjected to high performance stop braking

Autor:	D.E. Gray, O. Orringer
Rok vydání:	1995
Předmět:	Engineering business.industry Applied Mathematics Mechanical Engineering Fracture mechanics Structural engineering Condensed Matter Physics Residual Cracking Residual stress Electric locomotive Thermal Cylinder stress General Materials Science Multi unit business human activities
Zdroj:	Theoretical and Applied Fracture Mechanics. 23:55-65
ISSN:	0167-8442
DOI:	10.1016/0167-8442(95)00004-x
Popis:	An investigation of thermal cracks observed in the wheels of certain electric multiple unit (EMU) locomotives in North American commuter rail service is summarized. The cause is found to be partial reversal of the wheel rim residual hoop stress, which is initially compressive from the manufacturer's quench treatment. The residual stress reversal is caused by thermal stresses during high performance stop braking. Crack propagation and failure mechanisms are summarized. Measures for prevention are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::16ce29e082769db1f760bb3a7f2c563f https://doi.org/10.1016/0167-8442(95)00004-x Zobrazit plný text záznamu Full Text from ScienceDirect