Study on the influencing factors of impact resistance of shear thickening fluids filled foam
International Journal of Clothing Science and Technology
ISSN: 0955-6222
Article publication date: 30 April 2024
Issue publication date: 7 June 2024
Abstract
Purpose
The present study assesses the impact resistance of the shear thickening fluids-filled (STFs-filled) foam through drop-hammer impact tests.
Design/methodology/approach
The maximum residual impact load and specific impact energy absorption rate of STF-filled foam are studied with varying thickness (4–14 mm), densities (0.35–0.6 g/cm3) and hardness (40–50 Rockwell Hardness C Scale (HRC)) under different ambient temperatures (−20−20 °C) and impact energies (25–75 J).
Findings
The following conclusions are obtained from this study: (1) the higher the impact energy, the greater the maximum residual impact force and energy absorption efficiency of the material; (2) the impact resistance of STF-filled foam can be improved with the decrease of ambient temperature, achieving the highest energy absorption rate at −10?. (3) STF-filled foam substrate has the highest impact resistance, the lowest maximum residual impact force and the highest energy absorption coefficient when the density is 0.35 g/cm3, the hardness is 45HC and the thickness is 10 mm.
Originality/value
This is the first paper to analyze the impact of both environmental factors and material properties on the impact resistance of STF-filled foam. The results show that the decrease in temperature and the increase in hardness can enhance the impact resistance of STF-filled foam.
Keywords
Acknowledgements
The authors would like to thank the supports from National Key Research and Development Program of China (Grant No. 2022YFC3080900), and National Natural Science Foundation of China (Grant No. 52074163).
Citation
Nan, X., Huang, X.C., Huang, M., Wang, X., Zhu, Y., Li, Y., Shen, S. and Fu, M. (2024), "Study on the influencing factors of impact resistance of shear thickening fluids filled foam", International Journal of Clothing Science and Technology, Vol. 36 No. 3, pp. 486-498. https://doi.org/10.1108/IJCST-02-2024-0031
Publisher
:Emerald Publishing Limited
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