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A Coupled Biomechanical-Smoothed Particle Hydrodynamics Model for Horse Racing Tracks.

Simon M Harrison1, R Chris Whitton2, Susan M Stover3

  • 1Data61, CSIRO, Clayton, VIC, Australia.

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|March 10, 2022
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Summary
This summary is machine-generated.

Computational models reveal track harrowing significantly impacts equine limb loading during racing. This research helps understand how track properties influence horse injuries, aiding in safer racing surfaces.

Keywords:
biomechanicselastoplasticequinegaitlarge deformationquadruped

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Area of Science:

  • Biomechanics
  • Computational modeling
  • Equine science

Background:

  • Distal limb injuries are prevalent in racing horses.
  • Track surface properties are linked to equine injury risk.

Purpose of the Study:

  • To develop and validate a 3D computational model of equine hoof-track interaction.
  • To simulate hoof-track impact on dirt and synthetic surfaces.
  • To identify track parameters influencing mechanical loading on horses' limbs.

Main Methods:

  • Developed a 3D computational track model using Smoothed Particle Hydrodynamics (SPH) and a Drucker-Prager material model.
  • Validated and calibrated the track model against analytical data and custom track testing.
  • Coupled the SPH track model with a biomechanical model of the horse forelimb for impact simulations.

Main Results:

  • The SPH track model accurately represented impact loading on different racetrack surfaces.
  • Track harrowing, elastic modulus, and cohesion were key factors affecting impact loading.
  • The model successfully simulated hoof-ground interaction during galloping.

Conclusions:

  • The developed computational model provides a tool to study hoof-track interactions.
  • Understanding track surface mechanics is crucial for mitigating equine limb injuries.
  • Track maintenance, particularly harrowing, plays a significant role in managing impact forces on racing horses.