High-velocity impact of solid objects on Non-Newtonian Fluids

Goede, T. C. de; Bruin, Karla G. de; Bonn, Daniel

doi:10.1038/s41598-018-37543-1

Cited by 35 publications

(25 citation statements)

References 31 publications

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“…At this point, the fluid changes to a solid-state [ 6 , 8 , 9 ]. Due to this ability, the non-Newtonian fluid can have an important role in impact dynamics [ 10 ], since it positively influences the mechanical properties and increases parameters performance such as energy absorption [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Low-Velocity Impact Response of Auxetic Seamless Knits Combined with Non-Newtonian Fluids

Pais

Bessa

Dias³

et al. 2022

Polymers

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Low-velocity impact can cause serious damage to the person or structure that is hit. The development of barriers that can absorb the energy of the impact and, therefore, protect the other side of the impact is the ideal solution for the pointed situation. Auxetic materials and shear thickening fluids are two types of technologies that have great capabilities to absorb high levels of energy when an impact happens. Accordingly, within this study, the combination of auxetic knits with shear thickening fluids by the pad-dry-cure process was investigated. It was observed that, by applying knits with auxetic patterns produced with denser materials and combined with the shear thickening fluids, high performance in terms of absorbed energy from puncture impact is obtained. The increment rates obtained are higher than 100% when comparing the structures with and without shear thickening fluids.

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Section: Introductionmentioning

confidence: 99%

Low-Velocity Impact Response of Auxetic Seamless Knits Combined with Non-Newtonian Fluids

Pais

Bessa

Dias³

et al. 2022

Polymers

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“…Many studies have been carried out for the preparation of STF by employing silica nanoparticles with polyethylene glycol (PEG). [13][14][15] The behavior of STF is influenced mainly by the molecular weight of PEG, size, and concentration of nano silica. The augmented thickening characteristic of STF is observed with increasing particle loading, whereas, thickening behavior decreases if the size of dispersed particles reduces.…”

Section: Magnetorheologicalmentioning

confidence: 99%

“…Finally, the impregnated Kevlar is heated for the time 90 to 120 s at 343. 15 10 numbers of pieces and the density of different pieces of Kevlar has been determined.…”

Section: Impregnation Of Kevlarmentioning

confidence: 99%

Impact behavior of aminosilane functionalized nanosilica based shear thickening fluid impregnated Kevlar fabrics

Katiyar

Nandi

Prasad

2021

J of Applied Polymer Sci

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In the present work, two types of shear thickening fluids have been synthesized by using neat and aminosilane functionalized silica nanoparticles and their viscosity curves have been obtained by the rheometer. Based on the values of peak viscosity of synthesized shear thickening fluids, the surface functionalized nanosilica based shear thickening fluid has been chosen as a best candidate due to the high viscosity for impregnation into the neat Kevlar of different layers viz. four (04) and eight (08) layers for velocity impact study. The experimental investigations reveal high energy absorption of shear thickening fluid impregnated Kevlar as compared to the neat Kevlar. The maximum energy absorption 62 J is achieved corresponding to the initial velocity 154 mÁs −1 for 08 layers shear thickening fluid impregnated Kevlar specimen. The data have also been analytically determined and validated with the experimental data. The experimental data have good agreement with the analytical data within the accuracy of around 15 to 20%. The present findings can have significant inferences towards the fabrication of shear thickening fluids using nanomaterials for numerous applications such as soft armors, dampers, nanofinishing and so forth.

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“…e analysis of non-Newtonian fluids flow is significant in the field of engineering and oil and gas purification and filtration process. Researchers have reported on viscoelastic fluid flow applications using a porous medium [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Magnetohydrodynamic Fluctuating Free Convection Flow of Second-Grade Fluid Flow in a Porous Medium

Ali

Khan

Gohar

2021

Mathematical Problems in Engineering

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The article’s objective is to study the magnetohydrodynamic fluctuating free convection flow of incompressible electrically conducting viscoelastic fluid in a porous medium in the presence of a pressure gradient. The flow is between two parallel plates; the lower plate is at rest, while the upper plate moves with a free stream velocity U t . A uniform magnetic field of strength B0 is applied transversely to the fluid motion. The dimensional governing equations and physical initial and boundary conditions are nondimensionalized by inserting appropriate dimensionless variables. Furthermore, Lighthill’s method is used to obtain exact analytical solutions for the velocity, temperature, and concentration distributions. Finally, the influences of inserted parameters are studied through plots and discussed physically. The numerical results are calculated and presented in tabular form for skin friction. It is worth mentioning that when the viscoelastic parameter α 1 tends to zero, the obtained general solution is reduced to Newtonian fluid, which shows the validity and correctness of our obtained exact solutions.

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High-velocity impact of solid objects on Non-Newtonian Fluids

Cited by 35 publications

References 31 publications

Low-Velocity Impact Response of Auxetic Seamless Knits Combined with Non-Newtonian Fluids

Low-Velocity Impact Response of Auxetic Seamless Knits Combined with Non-Newtonian Fluids

Impact behavior of aminosilane functionalized nanosilica based shear thickening fluid impregnated Kevlar fabrics

Magnetohydrodynamic Fluctuating Free Convection Flow of Second-Grade Fluid Flow in a Porous Medium

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