Studies on Nonlinear Load Deflection Response of Brake Friction Materials

Paper #:
  • 2013-36-0033

Published:
  • 2013-05-15
DOI:
  • 10.4271/2013-36-0033
Citation:
Flaim, T., Flaim, N., Greening, C., and Greening, B., "Studies on Nonlinear Load Deflection Response of Brake Friction Materials," SAE Technical Paper 2013-36-0033, 2013, doi:10.4271/2013-36-0033.
Pages:
7
Abstract:
In addition to traditional load-deformation response of brake friction materials at constant load (compressibility), measurements for creep (time dependent deformation at constant load), and transient deformation response under increasing (apply) and decreasing (release) linear loading cycles have been measured and reported.One additional load-deformation response characteristic of brake friction materials that can be studied using the Greening Model 1140 test technology is that of nonlinear hysteresis under cyclic loading conditions (both linear and nonlinear). This presentation discusses the measurement of low frequency (< 10 Hz) deformation response of brake friction materials, how these measured results can be objectively quantified and normalized as well as how these measurements might provide additional insight into the ‘internal friction’ mechanisms of these complex composites.
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