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Methodology for characterizing brake friction material on high temperatures

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Abstract
The current work aims to describe a methodology to test brake friction materials through a braking tribometer, which is integrated by an electromagnetic induction heater. This technology allows to characterize the isolated effect of load and temperature on friction. Characteristics of the main machines and procedures for testing friction materials are evaluated, paying particular attention with regard to the effect of load and temperature on friction. Experimental methodology consisted of performing brakings under 3 levels of load and 4 levels of temperature. Results from the experiments show that coefficient of friction decreases considerably when temperature is higher than 300°C. It was also observed that the effect of load on friction varies according to the friction material evaluated. About the number of braking applications at each temperature level, it has been verified that at temperatures of 200°C, 300°C and 350°C, three braking are able to characterize the friction behavior. However, when temperature is 100°C, at least 10 brakings are required in order to obtain satisfactory results. The reason for that is due to the bedding-in and also recovery effect of friction, which occurs immediately after to the brake friction material to be subjected to high temperatures (300°C or higher).
Keywords
fade, high temperature., friction, braking test

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Chicago
Neis, Patrick Daniel, Jacob Sukumaran, Yeczain Perez Delgado, Mátyás Andó, Ney Francisco Ferreira, and PATRICK DE BAETS. 2013. “Methodology for Characterizing Brake Friction Material on High Temperatures.” In 5th International Conference on Sustainable Construction and Design, Proceedings, ed. Stijn Hertelé and Jeroen Van Wittenberghe. Vol. 4. Laboratory Soete, Ghent University.
APA
Neis, Patrick Daniel, Sukumaran, J., Perez Delgado, Y., Andó, M., Ferreira, N. F., & DE BAETS, P. (2013). Methodology for characterizing brake friction material on high temperatures. In S. Hertelé & J. Van Wittenberghe (Eds.), 5th International Conference on Sustainable Construction and Design, Proceedings (Vol. 4). Presented at the 5th International Conference on Sustainable Construction and Design, Laboratory Soete, Ghent University.
Vancouver
1.
Neis PD, Sukumaran J, Perez Delgado Y, Andó M, Ferreira NF, DE BAETS P. Methodology for characterizing brake friction material on high temperatures. In: Hertelé S, Van Wittenberghe J, editors. 5th International Conference on Sustainable Construction and Design, Proceedings. Laboratory Soete, Ghent University; 2013.
MLA
Neis, Patrick Daniel, Jacob Sukumaran, Yeczain Perez Delgado, et al. “Methodology for Characterizing Brake Friction Material on High Temperatures.” 5th International Conference on Sustainable Construction and Design, Proceedings. Ed. Stijn Hertelé & Jeroen Van Wittenberghe. Vol. 4. Laboratory Soete, Ghent University, 2013. Print.
@inproceedings{6871110,
  abstract     = {The current work aims to describe a methodology to test brake friction materials through a braking tribometer, which is integrated by an electromagnetic induction heater. This technology allows to characterize the isolated effect of load and temperature on friction. Characteristics of the main machines and procedures for testing friction materials are evaluated, paying particular attention with regard to the effect of load and temperature on friction. Experimental methodology consisted of performing brakings under 3 levels of load and 4 levels of temperature. Results from the experiments show that coefficient of friction decreases considerably when temperature is higher than 300{\textdegree}C. It was also observed that the effect of load on friction varies according to the friction material evaluated. About the number of braking applications at each temperature level, it has been verified that at temperatures of 200{\textdegree}C, 300{\textdegree}C and 350{\textdegree}C, three braking are able to characterize the friction behavior. However, when temperature is 100{\textdegree}C, at least 10 brakings are required in order to obtain satisfactory results. The reason for that is due to the bedding-in and also recovery effect of friction, which occurs immediately after to the brake friction material to be subjected to high temperatures (300{\textdegree}C or higher).},
  author       = {Neis, Patrick Daniel and Sukumaran, Jacob and Perez Delgado, Yeczain and And{\'o}, M{\'a}ty{\'a}s and Ferreira, Ney Francisco and De Baets, Patrick},
  booktitle    = {5th International Conference on Sustainable Construction and Design, Proceedings},
  editor       = {Hertel{\'e}, Stijn and Van Wittenberghe, Jeroen},
  issn         = {2032-7471},
  keyword      = {fade,high temperature.,friction,braking test},
  language     = {eng},
  location     = {Ghent, Belgium},
  number       = {2},
  pages        = {7},
  publisher    = {Laboratory Soete, Ghent University},
  title        = {Methodology for characterizing brake friction material on high temperatures},
  volume       = {4},
  year         = {2013},
}