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Textile Research Journal
Shear thickening fluid (STF) for personal stab-resistant clothing has been consistently discussed. However, it is not clear whether STF in STF–fabric composite materials undergoes thickening under normal loads, and to what extent. In this study, the yarn pullout test and the knife-stab test in the quasistatic mode were used to establish the ...
Lijuan Wang +4 more
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Shear thickening fluid (STF) for personal stab-resistant clothing has been consistently discussed. However, it is not clear whether STF in STF–fabric composite materials undergoes thickening under normal loads, and to what extent. In this study, the yarn pullout test and the knife-stab test in the quasistatic mode were used to establish the ...
Lijuan Wang +4 more
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Nonlinear fluid behavior: from shear thinning to shear thickening
Physica A: Statistical Mechanics and its Applications, 1994Abstract A phenomenological model is introduced which describes both shear thinning and shear thickening behavior. Consequences of this model are presented for plane Couette (simple shear) flow. The non-Newtonian viscosity and normal pressure differences are discussed for a stationary situation.
Ortwin Hess, Siegfried Hess
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Shear thinning and shear thickening characteristics in electrorheological fluids
Smart Materials and Structures, 2013The electrorheology (ER) of suspensions based on polystyrene/polyaniline (PS/PANI) core/shell structured microspheres and those based on disk-like zeolite particles at different electric fields and particle volume fractions have been studied, respectively.
Jile Jiang +6 more
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Composition – Property Relations in Shear Thickening Fluids
Advances in Science and Technology, 2014It was shown that fumed silica particles (FS), dispersed in polypropylene glycol (PPG), form shear thickening fluids (STF). PPGs with different molar mass were tested. The best combination of the properties (high viscosity, obtained at high shear rate) present the fluids composed of 7 nm FS and PPG 425.
Łukasz Wierzbicki, Marcin Leonowicz
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Rheological Properties of Shear Thickening Fluids
2019In this study, influences of temperature and amount of solid particles in Shear Thickening Fluids (STFs) were investigated. To observe the thickening mechanism of STFs, four main characteristic terms which are viscosity profile, critical shear rate, thickening period and thickening ratio, were defined and the effects of the variable parameters on these
Gürgen, Selim, Kuşhan, Melih Cemal
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Dissipative structures in shear-thickening complex fluids
Physics of Fluids, 2018The main objective of this work is to demonstrate that non-local terms of the structure variable and shear-stress is a sufficient condition to predict multiple bands in rheologically complex fluids, i.e., shear-thickening fluids. Here, shear bands are considered as dissipative structures arising from spatial instabilities (Turing patterns) rather than ...
M. Turcio +5 more
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Energy Absorption in a Shear-Thickening Fluid
Journal of Materials Engineering and Performance, 2014This study investigates energy absorption in a shear-thickening fluid (STF) containing nano-size fumed silica as a suspending material. Fumed silica particles in 20, 30, and 40 wt.% were used in polyethylene glycol and ethylene glycol. Three areas were studied, namely: energy absorption of STF pre-impregnated aramid fabric, neat STF under high-velocity
Seyed Hossein Amiri Afeshejani +3 more
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Onset of shear thickening in a simple fluid
The European Physical Journal E, 2004We report on nonequilibrium molecular-dynamics simulations of the shear-thickening transition in a simple fluid under shear. We relate the shear-thickening transition to the onset of instabilities in the flow profile and to that of dramatic variations in normal stress differences.
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Stress pulse attenuation in shear thickening fluid
Applied Physics Letters, 2013The stress pulse attenuation of the 62 vol/vol. % dense silica particle-ethylene glycol suspension was investigated by using a modified spilt Hopkinson pressure bar. In comparison to the neat ethylene glycol solution, the transmission pulse of the shear thickening is much weaker under the same impact condition. No energy loss is progressed for the neat
Weifeng Jiang +6 more
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Structural damping using encapsulated shear thickening fluids
SPIE Proceedings, 2012Smart structures with tunable damping and stiffness characteristics are of high interest to aerospace applications, but often require an external power source to be activated. This can be avoided by using highly concentrated silica suspensions, which exhibit a shear-thickening behavior, linked to a dramatic increase in viscous dissipation.
Mathieu Soutrenon, Véronique Michaud
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