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Title: Mechanical response of shear thickening fluid filled composite subjected to different strain rates
Authors: Zhang, Xin
Wang, Pengfei
Kurkin, Anatoli
Chen, Qian
Gong, Xinglong
Zhang, Zhong
Yang, En-Hua
Yang, Jinglei
Keywords: Engineering::Civil engineering
Issue Date: 2021
Source: Zhang, X., Wang, P., Kurkin, A., Chen, Q., Gong, X., Zhang, Z., Yang, E. & Yang, J. (2021). Mechanical response of shear thickening fluid filled composite subjected to different strain rates. International Journal of Mechanical Sciences, 196, 106304-.
Journal: International Journal of Mechanical Sciences
Abstract: Shear thickening fluid (STF) has been used in many areas due to its unique rheological property. In this study, the dynamic mechanical properties of STF-filled composite structures were investigated by in-house fabricated drop weight testing apparatuses. Results indicated that the strength and modulus increase with strain rate for all tube structures. Liquid-filled tubes possess similar strength and modulus, which are larger than air-filled tube at all strain rates. However, STF-filled tube absorbs 5 and 4 times more impact energy than air- and silicone oil-filled tubes, respectively. The energy absorption capacity of STF-filled tube increases with input impact energy. Meanwhile, the shear thickening effect of STF is more sensitive to the loading rate than the input energy, which is an important reference for the designing of STF integrated composite. The STF-filled silicone gel achieves repeatable test due to good protection of the encapsulation, which absorbs 4 times more energy than neat silicone gel during impact. Longitudinal symmetrical profile can be achieved for silicone gel encapsulated STF during impact due to the hardening of the STF which leads to a quick balance state. Moreover, the mechanical response of STF is found to correspond with the rheological performance of the STF.
ISSN: 0020-7403
DOI: 10.1016/j.ijmecsci.2021.106304
Schools: School of Civil and Environmental Engineering 
School of Materials Science and Engineering 
Rights: © 2021 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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