Finite difference heat transfer model of a steel-clad aluminum brake rotor

Document Type

Conference Proceeding

Publication Date



Department of Mechanical Engineering-Engineering Mechanics; Department of Materials Science and Engineering


This paper describes the heat transfer model of a composite aluminum brake rotor and compares the predicted temperatures to dynamometer measurements taken during a 15 fade stop trial. The model is based on meshed surface geometry which is simulated using RadTherm software. Methods for realistically modeling heat load distribution, surface rotation, convection cooling and radiation losses are also discussed. A comparison of the simulation results to the dynamometer data shows very close agreement throughout the fade stop trial. As such, the model is considered valid and will be used for further Steel Clad Aluminum (SCA) rotor development.

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Copyright © 2005 SAE International. Publisher’s version of record:

Publication Title

SAE Technical Papers