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Rheological and deformation behavior of natural smart suspensions exhibiting shear thickening properties

Wybrane pełne teksty z tego czasopisma
Identyfikatory
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Shear thickening fluid (STF) is a very interesting and promising material in several application fields where a different mechanical is demanded based on loading rates, like body armor and vibration insulators. Cork is a natural cellular material by excellence, filled with well-known beneficial effects in terms of insulation and also interesting crashworthiness properties. In this work, cork grains of very small size (0.5–1.0 mm) are added to two different shear thickening suspensions, one of them a fully natural water and cornstarch, and the other based on fumed silica and polyethylene glycol. The rheology of these eco-friendly suspensions was investigated and the influences of including cork grains were discussed. In addition, microscopic analyses were carried out to observe the deformations at each component during the shear thickening phenomenon. Cork grains reduce the load-carrying capacity in the suspensions due to the deformable characteristics of cork. For this reason, shear thickening properties are suppressed in the mixtures. Despite this, it is possible to state that viscosity increase in the mixtures leads to strong particle contacts, and thereby resulting in particle deformations in the main constituent powder as well as in the cork additives due to their softer structures.
Rocznik
Strony
166--173
Opis fizyczny
Bibliogr. 36 poz., rys., wykr.
Twórcy
  • Eskişehir Vocational School, ESOGU, Eskişehir, Turkey
  • TEMA, Center of Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Aveiro, Portugal
Bibliografia
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  • [5] Xu Y, Chen X, Wang Y, Yuan Z. Stabbing resistance of body armour panels impregnated with shear thickening fluid. Campos Struct. 2017;163:465–73. https ://doi.org/10.1016/j.comps truct.2016.12.056.
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  • [14] Gürgen S, Sofuoğlu MA. Vibration attenuation of sandwich structures filled with shear thickening fluids. Compos Part B Eng. 2020;186:107831. https ://doi.org/10.1016/j.compo sites b.2020.10783 1.
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  • [20] Gürgen S, Li W, Kuşhan MC. The rheology of shear thickening fluids with various ceramic particle additives. Mater Des. 2016;104:312–9. https ://doi.org/10.1016/j.matde s.2016.05.055.
  • [21] Gürgen S, Kuşhan MC, Li W. The effect of carbide particle additives on rheology of shear thickening fluids. Korea–Aust Rheol J. 2016;28(2):121–8. https ://doi.org/10.1007/s1336 7-016-0011-x.
  • [22] Gürgen S. Tuning the rheology of nano-sized silica suspensions with silicon nitride particles. J Nano Res. 2019;56:63–70. https ://doi.org/10.4028/www.scien tific .net/JNano R.56.63.
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Uwagi
PL
Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-0fb85cc9-1c57-456c-8268-f1cd7b6ff2be
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