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Dynamic Strain Rate Response with Changing Temperatures for Wax-Coated Granular Composites

  • J. W. BridgeEmail author
  • M. L. Peterson
  • C. W. McIlwraith
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Triaxial tests were conducted at varying load rates and temperatures for a wax-coated granular composite material. This material is used as a surface for Thoroughbred horse racing. The purpose of the test is to examine how the shear strength of a synthetic track responds to changing strain rates. The temperatures used correspond to the temperatures of the surfaces during operations. These same temperatures have been shown using differential scanning calorimetry to correspond to thermal transition regions for the wax used to coat the sand in these surfaces. Preliminary results show that these tracks are sensitive to both an increase in the rate of loading and the temperature. However there may be an upper strain rate limit where temperature effects diminish. At low strain rates, temperature affects the dynamic strengthening response, while at higher strain rates; the dynamic load governs the strength response.

Keywords

granular composites dynamic strain rate triaxial shear strength paraffin and microcrystalline wax synthetic horse tracks 

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  • J. W. Bridge
    • 1
    • 2
    • 3
    Email author
  • M. L. Peterson
    • 2
    • 3
  • C. W. McIlwraith
    • 4
  1. 1.Dept. of EngineeringMaine Maritime AcademyCastineUSA
  2. 2.Department of Mechanical EngineeringUniversity of MaineOronoUSA
  3. 3.Racetrack Surfaces Testing LaboratoryOronoUSA
  4. 4.Gail Holmes Equine Orthopaedic Research Center, Department of Clinical SciencesColorado State UniversityFort CollinsUSA

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