Browse Publications Technical Papers 2002-01-2184
2002-07-09

A Basic Overview on Brake Disc Wear 2002-01-2184

Wear of brake disc is normally faced with sophisticated experimental methods, a basic overview on the phenomena related to disc wear is presented in this paper. DTV consists in a heterogeneous wear of the disc surface and it is caused by two factors: run-out and the mechanism of disc wear. The importance of DTV is due to the vehicle vibrations that high DTV values can cause during braking. A model, that considers iron oxide layer evolution on disc surface, can evidence some of the principal characteristics of disc wear. In this model the wear rates of disc gray cast iron and iron oxide layer are considered as some of the principal factors in DTV evolution, as well as the kinetics of the chemical reactions involved.

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