Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Shear Thickening Fluids in Cork Agglomerates: An Exploration of Advantages and Drawbacks

Guilherme J Antunes e Sousa
ORCID logo ,
Ana Rita Rocha
,
Gabriel F Serra
ORCID logo ,
Fábio A. O. Fernandes
ORCID logo ,
Ricardo J Alves de Sousa
* ORCID logo
Version 1 : Received: 24 March 2023 / Approved: 3 April 2023 / Online: 3 April 2023 (03:42:35 CEST)

A peer-reviewed article of this Preprint also exists.

Antunes e Sousa, G.J.; Rocha, A.R.S.; Serra, G.F.; Fernandes, F.A.O.; Alves de Sousa, R.J. Shear Thickening Fluids in Cork Agglomerates: An Exploration of Advantages and Drawbacks. Sustainability 2023, 15, 6764. Antunes e Sousa, G.J.; Rocha, A.R.S.; Serra, G.F.; Fernandes, F.A.O.; Alves de Sousa, R.J. Shear Thickening Fluids in Cork Agglomerates: An Exploration of Advantages and Drawbacks. Sustainability 2023, 15, 6764.

Abstract

Shear thickening fluids (STF) are a class of fluids whose viscosity significantly rises under external loads. The research on these fluids has been advancing in recent years regarding prospective practical applications, including developing impact-absorbing composites. Following the green agendas governments and legislators advocate, this study investigates the combination of STF and other sustainable materials. Cork is a naturally occurring cellular material with a negative carbon footprint and superior energy absorption properties. With varying concentrations of STF material, cork agglomerates were formed. Notably, the analysed blends are homogeneous, contrasting with previous literary works. A series of experiments were conducted in quasi-static and dynamic conditions to determine the various mechanical responses. STF appears to influence the mechanical behaviour of cork agglomerates by providing softer deceleration rates and dispersing more energy through disaggregation mechanisms.

Keywords

Shear thickening fluids; Viscosity; Shear rate; Impact resistance; Lightweight armour; Crashworthiness; Sustainability; Cork; Composites; Eco-friendly

Subject

Physical Sciences, Fluids and Plasmas Physics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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