✦ LIBER ✦

Failure analysis of railway brake blocks: mechanical properties prediction

✍ Scribed by John Ade Ajayi

Publisher: Elsevier Science
Year: 2002
Tongue: English
Weight: 106 KB
Volume: 9
Category: Article
ISSN: 1350-6307
DOI: 10.1016/s1350-6307(01)00030-9

No coin nor oath required. For personal study only.

✦ Synopsis

In this study, failed samples of railway brake blocks were analysed to ascertain the causes of failure. Seven samples of varying charge constituents were produced in a permanent mould. Mechanical tests (hardness, compression and impact), spectroscopic analysis and microstructural investigations were carried out on each sample. Multiple linear regression analysis was then used in correlating the composition with the mechanical properties. Analysis shows that two of the test samples have superior mechanical properties to the imported (standard) brake block. Three equations emerged from the analysis which should help the producers and users of railway brake blocks to predict the mechanical properties of the blocks to be cast, thereby overcoming the high incidence of catastrophic failure of the brake blocks.

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