Cole - Mechanical Characterisation and Modelling of Elastomeric Shockpads applsci-08-00501.pdf (31.39 MB)
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Mechanical characterisation and modelling of elastomeric shockpads

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posted on 25.04.2018, 07:55 authored by David Cole, Steph ForresterSteph Forrester, Paul FlemingPaul Fleming
Third generation artificial turf systems are comprised of a range of polymeric and elastomeric materials that exhibit non-linear and strain rate dependent behaviours under the complex loads applied from players and equipment. An elastomeric shockpad is often included beneath the carpet layer to aid in the absorption of impact forces. The purpose of this study was to characterise the behaviour of two elastomeric shockpads and find a suitable material model to represent them in finite element simulations. To characterise the behaviour of the shockpads an Advanced Artificial Athlete test device was used to gather stress-strain data from different drop heights (15, 35 and 55 mm). The experimental results from both shockpads showed a hyperelastic material response with viscoelasticity. Microfoam material models were found to describe the material behaviour of the shockpads and were calibrated using the 55 mm drop height experimental data. The material model for each shockpad was verified through finite element simulations of the Advanced Artificial Athlete impact from different drop heights (35 and 15 mm). Finite element model accuracy was assessed through the comparison of a series of key variables including shock absorption, energy restitution, vertical deformation and contact time. Both shockpad models produced results with a mean error of less than 10% compared to experimental data.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Applied Sciences (Switzerland)

Volume

8

Issue

4

Citation

COLE, D., FORRESTER, S.E. and FLEMING, P.R., 2018. Mechanical characterisation and modelling of elastomeric shockpads. Applied Sciences, 8 (4), 501.

Publisher

MDPI (© The Authors)

Version

VoR (Version of Record)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution 4.0 International (CC BY 4.0) licence. Full details of this licence are available at: http://creativecommons.org/licenses/ by/4.0/

Acceptance date

20/03/2018

Publication date

2018-03-27

Notes

This is an Open Access Article. It is published by MDPI under the Creative Commons Attribution 4.0 International Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/

eISSN

2076-3417

Language

en