scholarly journals The effect of particle strength on the ballistic resistance of shear thickening fluids

2013 ◽  
Vol 102 (6) ◽  
pp. 064103 ◽  
Author(s):  
Oren E. Petel ◽  
Simon Ouellet ◽  
Jason Loiseau ◽  
Bradley J. Marr ◽  
David L. Frost ◽  
...  
Keyword(s):  
Shear Thickening ◽  
Ballistic Resistance ◽  
Particle Strength ◽  
Shear Thickening Fluids

The effect of particle size and concentration on the ballistic resistance of different shear thickening fluids

2020 ◽  
Vol 28 ◽  
pp. 1472-1476
Author(s):  
Gunjan Grover ◽  
Sanjeev K. Verma ◽  
Anupama Thakur ◽  
Ipsita Biswas ◽  
Debarati Bhatacharjee
Keyword(s):  
Particle Size ◽  
Shear Thickening ◽  
Ballistic Resistance ◽  
Shear Thickening Fluids ◽  
Effect Of Particle Size

scholarly journals Rheology Based Design of Shear Thickening Fluid for Soft Body Armor Applications

2019 ◽  
Vol 64 (1) ◽  
pp. 75-84 ◽  
Author(s):  
Balasubrahmanya Harish Manukonda ◽  
Victor Avisek Chatterjee ◽  
Sanjeev Kumar Verma ◽  
Debarati Bhattacharjee ◽  
Ipsita Biswas ◽  
...  
Keyword(s):  
Particle Size ◽  
Shear Thickening ◽  
High Strength ◽  
Packing Fraction ◽  
Continuous Phase ◽  
Body Armor ◽  
Rheological Characterization ◽  
Ballistic Performance ◽  
Ballistic Resistance ◽  
Shear Thickening Fluids

The ballistic resistance of high-strength fabrics improves upon impregnation with Shear Thickening Fluids (STFs). The performance of such STF treated fabrics depends on the rheological properties of the STF which in turn are governed by the physicochemical properties of the STF. The present study utilizes rheological characterization of shear thickening silica-polyethylene glycol dispersions (of different material configurations in terms of packing fraction, particle size and continuous phase viscosity) to assess their performance and obtain the best STF material configuration for ballistic body armor applications based on the design criteria proposed herein. The ballistic performance assessment results showed that the STFs with high packing fractions which thicken discontinuously, are highly effective compared to the continuously shear thickening fluids. Furthermore, the use of smaller particle size dispersed phase in the STF formulation was determined to be economical. Also, the use of lower molecular weight dispersion medium was suggested as it allows for a broader working temperature range of the STF. Additionally, the technological issues associated with the development and the practical application of STF-Armor were addressed.

Research and Applications of Shear Thickening Fluids

2011 ◽  
Vol 4 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Jie Ding ◽  
Weihua Li ◽  
Shirley Z. Shen
Keyword(s):  
Shear Thickening ◽  
Shear Thickening Fluids

Dynamic compressive response of 3D GFRP composites with shear thickening fluid (STF) matrix as cushioning materials

2021 ◽  
pp. 002199832098424
Author(s):  
Mohsen Jeddi ◽  
Mojtaba Yazdani
Keyword(s):  
Shear Thickening ◽  
Low Velocity Impact ◽  
Gfrp Composites ◽  
High Concentration ◽  
Low Velocity ◽  
Shear Thickening Fluid ◽  
Compressive Response ◽  
Reinforced Polymer ◽  
Glass Fiber Reinforced ◽  
Shear Thickening Fluids

Whereas most previous studies have focused on improving the penetration resistance of Shear Thickening Fluids (STFs) treated composites, in this study, the dynamic compressive response of single and multi-ply 3 D E-Glass Fiber Reinforced Polymer (GFRP) composites with the STF matrix was investigated by using a drop-weight low-velocity impact test. The experimental results revealed the STF improved the compressive and cushioning performance of the composites such that with increasing its concentration, further improvement was observed. The five-ply composite containing the STF of 30 wt% silica nanoparticles and 1 wt% carbon nanotubes (CNTs) reduced the applied peak force by 56% and 26% compared to a steel plate and five-ply neat samples, respectively. A series of repeated impacts was performed, and it was found that the performance of high-concentration composites is further decreased under this type of loading.

scholarly journals Pre- and post-transition behavior of shear-thickening fluids in oscillating shear

2007 ◽  
Vol 46 (8) ◽  
pp. 1099-1108 ◽  
Author(s):  
Christian Fischer ◽  
Christopher J. G. Plummer ◽  
Véronique Michaud ◽  
Pierre-Etienne Bourban ◽  
Jan-Anders E. Månson
Keyword(s):  
Shear Thickening ◽  
Transition Behavior ◽  
Shear Thickening Fluids

Stability of Shear-Thickening Liquids Between Rotating Cylinders

2010 ◽  
Author(s):  
Nariman Ashrafi ◽  
Habib Karimi Haghighi
Keyword(s):  
Couette Flow ◽  
Dynamical Behavior ◽  
Shear Thickening ◽  
Shear Thinning ◽  
Taylor Vortex ◽  
Shear Dependent Viscosity ◽  
Shear Thinning Fluids ◽  
Shear Thickening Fluids ◽  
The Stability ◽  
Dependent Viscosity

The effects of nonlinearities on the stability are explored for shear thickening fluids in the narrow-gap limit of the Taylor-Couette flow. It is assumed that shear-thickening fluids behave exactly as opposite of shear thinning ones. A dynamical system is obtained from the conservation of mass and momentum equations which include nonlinear terms in velocity components due to the shear-dependent viscosity. It is found that the critical Taylor number, corresponding to the loss of stability of Couette flow becomes higher as the shear-thickening effects increases. Similar to the shear thinning case, the Taylor vortex structure emerges in the shear thickening flow, however they quickly disappear thus bringing the flow back to the purely azimuthal flow. Naturally, one expects shear thickening fluids to result in inverse dynamical behavior of shear thinning fluids. This study proves that this is not the case for every point on the bifurcation diagram.

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