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Journal articles on the topic 'Shear thickening'

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Author: Grafiati

Published: 4 June 2021

Last updated: 25 May 2024

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1

Li, Min, Binghai Lyu, Julong Yuan, Chenchen Dong, and Weitao Dai. "Shear-thickening polishing method." International Journal of Machine Tools and Manufacture 94 (July 2015): 88–99. http://dx.doi.org/10.1016/j.ijmachtools.2015.04.010.

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2

Nakamura, Hiroshi, Soichiro Makino, and Masahiko Ishii. "Continuous shear thickening and discontinuous shear thickening of concentrated monodispersed silica slurry." Advanced Powder Technology 31, no. 4 (April 2020): 1659–64. http://dx.doi.org/10.1016/j.apt.2020.01.032.

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3

Jiang, Weifeng, Shouhu Xuan, and Xinglong Gong. "The role of shear in the transition from continuous shear thickening to discontinuous shear thickening." Applied Physics Letters 106, no. 15 (April 13, 2015): 151902. http://dx.doi.org/10.1063/1.4918344.

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4

Gürgen, Selim. "An investigation on composite laminates including shear thickening fluid under stab condition." Journal of Composite Materials 53, no. 8 (August 22, 2018): 1111–22. http://dx.doi.org/10.1177/0021998318796158.

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Shear thickening fluids have been extensively utilized in composite laminate structures to enhance the impact resistance in the last decade. Despite the contribution of shear thickening fluids to the protective systems, the mechanism behind the energy absorption behavior of shear thickening fluids is not fully understood. In the present study, various configurations of composite laminates were prepared and these structures were investigated under low velocity stab conditions. Contrary to the common idea of shear thickening fluid impregnation for fabrics, shear thickening fluids were used in bulk form and by means of this, pure contribution of shear thickening behavior to the energy absorption was investigated. To hold the bulk shear thickening fluids in the composite laminates, Lantor Soric SF honeycomb layers were filled with shear thickening fluids and Twaron fabrics were plied in the structures as the reinforcement. As a result of this study, it is stated that shear thickening behavior is insufficient to effectively improve the energy absorption performance of composite laminates; however, shear thickening fluids are beneficial to fabric based composites because the inter-yarn friction of fabrics is enhanced using shear thickening fluids as an impregnation agent rather than a bulk form.

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5

Rosti, Marco E., and Shu Takagi. "Shear-thinning and shear-thickening emulsions in shear flows." Physics of Fluids 33, no. 8 (August 2021): 083319. http://dx.doi.org/10.1063/5.0063180.

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6

Wilson, Helen J. "‘Shear thickening’ in non-shear flows: the effect of microstructure." Journal of Fluid Mechanics 836 (December 11, 2017): 1–4. http://dx.doi.org/10.1017/jfm.2017.744.

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The bizarre behaviour of a cornstarch suspension (sometimes called oobleck) is well known to all of us who have led public engagement events. At the right solids fraction, it flows smoothly at slow speeds, but can be shattered with a quick spoon movement; if you prepare a large enough sample, you can run across the surface (but if you stand still, you will sink). In rheology circles this phenomenon is known as shear thickening, though the flows described above are not necessarily shear-dominated. In recent years there has been a proliferation of research on the mechanism behind true shear thickening, using both experiments and numerical simulations of shear flows. The understanding of the underlying mechanism is improving markedly. But the paper ‘Microstructure and thickening of dense suspensions under extensional and shear flows’ (Seto, Giusteri & Martinello, J. Fluid Mech., vol. 825, 2017, R3) is the first to consider more general flows. We have, for the first time, simulations of thickening in extensional flows, which are a far better description of oobleck with a runner on top – and can begin to quantify the difference between the idealised shear thickening and the extension thickening that happens in practice.

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7

Wei, Minghai, Kun Lin, Qian Guo, and Hong Sun. "Characterization and performance analysis of a shear thickening fluid damper." Measurement and Control 52, no. 1-2 (January 2019): 72–80. http://dx.doi.org/10.1177/0020294018819543.

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Shear thickening fluid is a smart material with rheological properties that can be rapidly varied by excitation changes. To fully explore the advantages of using shear thickening fluid in various devices, a phenomenological model for simulating complex viscosity characteristics of the shear thickening fluid has been developed, and an analytical model has been presented to predict the mechanical characteristics and performance of a damper filled with shear thickening fluid. Based on the analytical model, the force displacement curves are first analyzed for different excitation amplitudes and frequencies. Second, an investigation of the time history of the damping force at various excitation amplitudes is conducted. Finally, the effects of key design parameters on the force displacement and force velocity curves are discussed. The results show that the shear thickening fluid damper exhibits significant velocity correlation, and the damping force increased as the shear rate of shear thickening fluid increased until the threshold value. For the vibration with high frequency, or fast velocity, or large amplitude, the shear thickening fluid is easy to have high shear rate, which results in a great vibration control capability for the shear thickening fluid damper.

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8

Wei, Minghai, Li Sun, Peipei Qi, Chunguang Chang, and Chunyang Zhu. "Continuous phenomenological modeling for the viscosity of shear thickening fluids." Nanomaterials and Nanotechnology 8 (January 1, 2018): 184798041878655. http://dx.doi.org/10.1177/1847980418786551.

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In general, shear thickening fluids show a marked increase in viscosity beyond a critical shear rate, which can be attributed to the hydrodynamic clustering effects, where in any external energy acting on a shear thickening fluid is dissipated quickly. However, there is a lack of theoretical modeling to predict the viscosity curve of shear thickening fluids, which changes continuously with the increasing shear rate. In this article, a phenomenological continuous viscosity modeling for a class of shear thickening fluids is proposed. The modeling predicts shear thickening and thinning behaviors that are naturally exhibited by shear thickening fluids for high and high enough values of the shear rate. The result shows that the phenomenological modeling provides a very good fit for several independent experimental data sets. Therefore, the proposed modeling can be used in numerical simulations and theoretical analysis across different engineering fields.

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9

Selver, Erdem. "Tensile and flexural properties of glass and carbon fibre composites reinforced with silica nanoparticles and polyethylene glycol." Journal of Industrial Textiles 49, no. 6 (January 28, 2019): 809–32. http://dx.doi.org/10.1177/1528083719827368.

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This paper attempts to show the effect of silica nanoparticles and polyethylene glycol mixture (shear thickening fluids) on tensile and flexural properties (3-point bending) of glass and carbon fibre-reinforced thermoset composite laminates. The shear thickening fluids were prepared by combination of silica nanoparticles and polyethylene glycol using various silica contents (10–20 wt%). A viscometer was used to evaluate the shear thickening characteristics and viscosity of shear thickening fluids increased by increasing the silica content. Shear thickening fluids were impregnated on the host of glass and carbon fabrics and subsequently converted to composite laminates using vacuum infusion method with an epoxy matrix. It was found that shear thickening fluids-treated carbon and glass fabric composites exhibited up to 10% and 12% higher tensile strength than neat composites whilst the tensile modulus increased about 24%. Shear thickening fluids-treated fabric composites exhibited slower damage propagation compared to brittle nature of untreated fabric composites. However, lower flexural strength with higher energy absorption (up to 27%) were obtained after using shear thickening fluids for both carbon and glass fibre composites.

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10

Wang, Lijuan, Kejing Yu, Diantang Zhang, and Kun Qian. "The cut resistant characteristics of organic high-performance yarns and STF/yarns." Journal of Industrial Textiles 49, no. 10 (November 20, 2018): 1317–33. http://dx.doi.org/10.1177/1528083718811091.

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This paper mainly investigated the cut resistant property of shear thickening fluid enhanced organic high-performance yarn. Cut tests of neat yarn and shear thickening fluids/yarn were performed with two cutting angles. External forces involved in the cutting were analyzed. A simple theoretical relation was established based on the principle of the energy conversion. Two types of shear thickening fluids were prepared. Compared to neat yarn, the shear thickening fluids/yarn exhibited extremely high cut resistant property, especially, shear thickening fluids/yarn with graphene, indicating a synergistic effect. Fracture surfaces of fibers after yarns cut off were initially studied, which verified the cut resistant characteristics of organic high-performance yarns and shear thickening fluids/yarn.

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11

Lin, Neil Y. C., Christopher Ness, Michael E. Cates, Jin Sun, and Itai Cohen. "Tunable shear thickening in suspensions." Proceedings of the National Academy of Sciences 113, no. 39 (September 12, 2016): 10774–78. http://dx.doi.org/10.1073/pnas.1608348113.

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Shear thickening, an increase of viscosity with shear rate, is a ubiquitous phenomenon in suspended materials that has implications for broad technological applications. Controlling this thickening behavior remains a major challenge and has led to empirical strategies ranging from altering the particle surfaces and shape to modifying the solvent properties. However, none of these methods allows for tuning of flow properties during shear itself. Here, we demonstrate that by strategic imposition of a high-frequency and low-amplitude shear perturbation orthogonal to the primary shearing flow, we can largely eradicate shear thickening. The orthogonal shear effectively becomes a regulator for controlling thickening in the suspension, allowing the viscosity to be reduced by up to 2 decades on demand. In a separate setup, we show that such effects can be induced by simply agitating the sample transversely to the primary shear direction. Overall, the ability of in situ manipulation of shear thickening paves a route toward creating materials whose mechanical properties can be controlled.

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12

Kaldasch, Joachim, Bernhard Senge, and Jozua Laven. "Shear Thickening in Concentrated Soft Sphere Colloidal Suspensions: A Shear Induced Phase Transition." Journal of Thermodynamics 2015 (January 8, 2015): 1–10. http://dx.doi.org/10.1155/2015/153854.

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A model of shear thickening in dense suspensions of Brownian soft sphere colloidal particles is established. It suggests that shear thickening in soft sphere suspensions can be interpreted as a shear induced phase transition. Based on a Landau model of the coagulation transition of stabilized colloidal particles, taking the coupling between order parameter fluctuations and the local strain-field into account, the model suggests the occurrence of clusters of coagulated particles (subcritical bubbles) by applying a continuous shear perturbation. The critical shear stress of shear thickening in soft sphere suspensions is derived while reversible shear thickening and irreversible shear thickening have the same origin. The comparison of the theory with an experimental investigation of electrically stabilized colloidal suspensions confirms the presented approach.

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13

Prabhu, Tekkati Ajeeth, and Anugrah Singh. "Rheology and microstructure of discontinuous shear thickening suspensions." Journal of Rheology 66, no. 4 (July 2022): 731–47. http://dx.doi.org/10.1122/8.0000317.

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We report experimental studies on rheology and microstructure in discontinuous shear thickening of fumed silica suspensions. Formation of particle clusters was observed after the critical shear rate, and their size increases during shear thickening. At higher shear rates, these clusters were found to break down due to strong shear forces, and a continuous decrease in viscosity was observed. The suspension viscosity and the first normal stress difference variation with the shear rate showed similar dependence. The sign of first normal stress difference was negative during shear thickening, which is consistent with the hydrodynamic model of cluster formation. A linear variation of the first normal stress difference with shear rate during shear thickening further indicates its predominant hydrodynamic origin and supports the recent Stokesian dynamics simulation studies on discontinuous shear thickening based on the hydrodynamic model of nonsmooth colloids by Wang et al. [J. Rheol. 64, 379–394 (2020)]. On the other hand, a nonlinear decrease in the first normal stress difference with shear rate in the second shear-thinning region is primarily due to breaking of large clusters into smaller ones and with a possibility of frictional contacts within these hydroclusters. The oscillatory shear measurements were also performed and the samples displayed strain thickening similar to shear thickening. The similarity between the steady and dynamic shear rheology at high strain amplitudes was observed using the modified Cox–Merz rule.

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14

Wagner, Norman J., and John F. Brady. "Shear thickening in colloidal dispersions." Physics Today 62, no. 10 (October 2009): 27–32. http://dx.doi.org/10.1063/1.3248476.

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15

Witten, T. A., and M. H. Cohen. "Crosslinking in shear-thickening ionomers." Macromolecules 18, no. 10 (October 1985): 1915–18. http://dx.doi.org/10.1021/ma00152a019.

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16

Witten, T. A. "Associating polymers and shear thickening." Journal de Physique 49, no. 6 (1988): 1055–63. http://dx.doi.org/10.1051/jphys:019880049060105500.

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17

Fall, Abdoulaye, François Bertrand, Guillaume Ovarlez, and Daniel Bonn. "Shear thickening of cornstarch suspensions." Journal of Rheology 56, no. 3 (May 2012): 575–91. http://dx.doi.org/10.1122/1.3696875.

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18

Song, Kaijie, Wentao Huang, Hongjing Wan, and Hongjun Huang. "Development of Shear Thickening Material." IOP Conference Series: Materials Science and Engineering 207 (June 2017): 012024. http://dx.doi.org/10.1088/1757-899x/207/1/012024.

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19

Wang, Ruining, Ying Zhou, Qiushi Wang, Runjun Sun, Xiaoya Jia, and Mingyue Tian. "The influence of carbon nanotube addition on the shear-thickening performance of suspensions." Thermal Science 27, no. 3 Part A (2023): 1787–93. http://dx.doi.org/10.2298/tsci2303787w.

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The shear thickening fluid as a protective material has received increasing attention, and its impact resistance and its rheological properties are controllable by integrating various kinds of additives to a single phase shear thickening fluid. In this paper, the rheological properties of shear thickening fluids with 26 wt.% fume silica, PEG200 and different mass fraction of multi-walled carbon nano-tubes are investigated, and the effect of temperature from -5?C to 55?C on steady state rheological properties of 1.0 wt.% multi-walled carbon nanotubes reinforced shear thickening fluids is studied. Finally a single yarn pull-out test is conducted to examine the influence of multi-shear thickening fluid on the shear strength and inter-yarn friction of fabrics. The results show that the addition of multi-walled carbon nanotubes can improve significantly the viscosity and shear thickening efficiency.

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20

Evans, G. T. "Shear thinning vs shear thickening in associating fluids." Journal of Chemical Physics 108, no. 4 (January 22, 1998): 1570–77. http://dx.doi.org/10.1063/1.475528.

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21

Bautista, F., N. Tepale, V. V. A. Fernández, G. Landázuri, E. Hernández, E. R. Macías, J. F. A. Soltero, J. I. Escalante, O. Manero, and J. E. Puig. "A master dynamic flow diagram for the shear thickening transition in micellar solutions." Soft Matter 12, no. 1 (2016): 165–70. http://dx.doi.org/10.1039/c5sm01625h.

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Shear thickening of micellar solutions of hexadecyltrimethylammonium-type surfactants and alkyltretradecylammonium bromide surfactants. A master flow diagram of the shear thickening transition. Intensity of shear thickening and a Hofmeister-like anion series.

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22

Fan, Zenghua, Yebing Tian, Qiang Zhou, and Chen Shi. "A magnetic shear thickening media in magnetic field–assisted surface finishing." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 234, no. 6-7 (January 21, 2020): 1069–72. http://dx.doi.org/10.1177/0954405419896119.

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A novel surface finishing method named magnetic shear thickening finishing that combines the intelligent shear thickening fluids and magnetic field action is proposed. The magnetic shear thickening finishing media, which is a combination of carbonyl iron particles and SiC particles in a base medium of shear thickening fluids, is developed. The finishing processes were experimentally characterized to verify the performance potential of the proposed method and developed magnetic shear thickening finishing media. Experimental results demonstrated that the developed media is effective for surface finishing compared with finishing media without shear thickening fluids. The surface roughness value of the testing sample was reduced to 54 nm from an initial value of 1.17 μm. Scanning electron microscope observations showed that the scratches were removed obviously and a smooth surface was obtained.

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23

Zhang, Jia, Shiqing Cheng, Jie Zhan, and Qi Han. "The Effect of Rheology of Viscoelastic Polymer on Pressure Transient Response in Near-Wellbore Regions." Geofluids 2021 (June 7, 2021): 1–12. http://dx.doi.org/10.1155/2021/5568336.

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Viscoelastic polymer solution shows shear thinning behavior at low shear rates and shear thickening behavior at high shear rates in reservoirs. However, models that ignored shear thickening behavior were commonly employed to interpret transient pressure data derived from tested wells in viscoelastic polymer flooding systems; although, viscoelastic polymer solutions show shear thickening behavior in the near-wellbore region due to high shear rate. To better characterize the oilfield with pressure transient analysis in viscoelastic polymer flooding systems, we developed a numerical model that takes into account both shear thinning behavior and shear thickening behavior. A finite volume method was employed to discretize partially differential flow equations in a hybrid grid system including PEBI mesh and Cartesian grid, and the Newton-Raphson method was used to solve the fully implicit nonlinear system. To illustrate the significance of our model, we compared our model with a model that ignores the shear thickening behavior by graphing their solutions on log-log plots. In the flow regime of near-wellbore damage, the pressure derivative computed by our model is distinctly larger than that computed by the model ignoring shear thickening behavior. Furthermore, the effect of shear thickening behavior on pressure derivative differs from that of near-wellbore damage. We then investigated the influence of shear thickening behavior on pressure derivative with different polymer injection rates, injection rates, and permeabilities. The results can provide a benchmark to better estimate near-wellbore damage in viscoelastic polymer flooding systems. Besides, we demonstrated the applicability and accuracy of our model by interpreting transient pressure data from a field case in an oilfield with viscoelastic polymer flooding treatments.

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24

Morris, Jeffrey F. "Shear Thickening of Concentrated Suspensions: Recent Developments and Relation to Other Phenomena." Annual Review of Fluid Mechanics 52, no. 1 (January 5, 2020): 121–44. http://dx.doi.org/10.1146/annurev-fluid-010816-060128.

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Shear thickening is the increase of the apparent viscosity as shear rate or shear stress increases. This phenomenon is pronounced in concentrated (dense) suspensions of both colloidal-scale and larger particles, with an abrupt form, known as discontinuous shear thickening, observed as the maximum flowable solid fraction is approached. An overview of observed shear thickening behavior is presented, with a discussion of present understanding of the relationship of suspension shear thickening to granular jamming. Mechanistic arguments for the extreme change in rheological properties are outlined, and recent evidence from experiment and simulation for the role of contact forces is presented. Interactions of particles by fluid mechanical lubrication, contact, and steric and electrostatic forces, together with extreme stresses that may lead to solid deformation, require consideration of surface interactions and their tribological consequences in describing shear thickening.

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25

Tan, Yi Jie, Aung Khant Phyo, Lu Heng Chen, and Wei Min Huang. "Shear-Thickening Composites for On-Demand Rebound Performance and Softness." Inventions 5, no. 4 (December 14, 2020): 60. http://dx.doi.org/10.3390/inventions5040060.

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For footwear insoles, high rebound performance is required in some instances such as for running, while softness for comfort is of higher importance during normal walking and standing to minimize high stress. Hence, materials with rebound performance in some scenarios and softness for other scenarios are desired. In this paper, we investigate rebound performance and hardness of composites made of a shear-thickening material and elastic foam. First, a hydrogel type of shear-thickening material (Slime) is characterized to investigate the influence of water content. After that, two particular shear-thickening hydrogels with better rebound performance (but not outstanding in the shear-thickening effect) are selected and integrated into the elastic foam to produce a composite insole. It is found that, as compared with the commercial elastic insole and commercial shear-thickening insole, softer and superior rebound performance can be achieved simultaneously only if the right shear-thickening material is used in the composite.

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26

Passey, Pavni, Mansi Singh, Sanjeev K. Verma, Debarati Bhattacharya, and Rajeev Mehta. "Steady shear and dynamic strain thickening of halloysite nanotubes and fumed silica shear thickening composite." Journal of Polymer Engineering 38, no. 10 (November 27, 2018): 915–23. http://dx.doi.org/10.1515/polyeng-2018-0043.

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Abstract Developing the shear thickening fluids (STF) which can be used for soft body armours requires an in depth study of various parameters related to its constituents so that a high critical viscosity along with high critical shear rate can be obtained. Shape of the constituting particles is one such important parameter. Elongated and nanosize particles provide high critical viscosity to the fluid, whereas spherical particles show high critical shear rates. STF were prepared using halloysite (Hal) nanotubes of different concentrations with fumed silica (spheres) and their rheological properties were studied. A better non-flocculated structure was obtained at 1% Hal in 20% fumed silica composition, exhibiting a critical viscosity of 25 Pas at a critical shear rate 160 s−1 as compared to that of only spherical particle STF (10 Pas and 200 s−1). The oscillatory tests revealed that this composition, with a better consistent reproducible behaviour and better stability than the STF without Hal, would be suitable as a high impact resistant material. Gel formation does not take place, rather the fluid behaves like a dispersed sol, making it a better choice for using with protective fabrics. The rheology was studied at different temperatures ranging from 0°C to 55°C.

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27

Wang, Ping, Zhiyuan Chen, Kun Qian, and Kejing Yu. "Vibration Characteristics of Shear Thickening Fluid-Based Sandwich Structures." Advances in Polymer Technology 2022 (September 9, 2022): 1–12. http://dx.doi.org/10.1155/2022/6959485.

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The vibration attenuation mechanism of shear thickening fluid- (STF-) filled sandwich structures was investigated in this study. Structural equivalent damping, stiffness, and mass increased simultaneously with the increase in the volume fraction of shear thickening fluid. However, the damping ratio decreased and natural frequency increased with the increase in structural mass. Thus, the damping ratio was not a monotonically increasing function of the volume fraction of STF. A modified shear strain model of the damping layer was developed based on the following conditions: (1) under the condition of small strain, shear thickening fluid was regarded as linear viscoelastic material, and (2) the warpage of the sandwich beam was considered during deformation and the influence of STF on the shear strain of sandwich beam. According to the modified shear strain model of the damping layer, the shear thickening occurred at 1 Hz to 20 Hz during vibration. Therefore, the resonance point of the structure shifted to the left. The predictions were in excellent agreement with the experimental results. The results demonstrated that shear thickening fluid improved the vibration damping performance of the sandwich structure, while the thickening ability was not the higher, the better.

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28

Lootens, D., P. Hébraud, E. Lécolier, and H. Van Damme. "Gelation, Shear-Thinning and Shear-Thickening in Cement Slurries." Oil & Gas Science and Technology 59, no. 1 (January 2004): 31–40. http://dx.doi.org/10.2516/ogst:2004004.

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29

Chen, Qian, Mei Liu, Shouhu Xuan, Wanquan Jiang, Saisai Cao, and Xinglong Gong. "Shear dependent electrical property of conductive shear thickening fluid." Materials & Design 121 (May 2017): 92–100. http://dx.doi.org/10.1016/j.matdes.2017.02.056.

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30

Bergström, Lennart. "Shear thinning and shear thickening of concentrated ceramic suspensions." Colloids and Surfaces A: Physicochemical and Engineering Aspects 133, no. 1-2 (February 1998): 151–55. http://dx.doi.org/10.1016/s0927-7757(97)00133-7.

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31

Jiang, Jile, YingDan Liu, Lei Shan, Xiangjun Zhang, Yonggang Meng, Hyoung Jin Choi, and Yu Tian. "Shear thinning and shear thickening characteristics in electrorheological fluids." Smart Materials and Structures 23, no. 1 (December 6, 2013): 015003. http://dx.doi.org/10.1088/0964-1726/23/1/015003.

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32

Hess, Ortwin, and Siegfried Hess. "Nonlinear fluid behavior: from shear thinning to shear thickening." Physica A: Statistical Mechanics and its Applications 207, no. 4 (June 1994): 517–40. http://dx.doi.org/10.1016/0378-4371(94)90208-9.

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33

Ali, N., Y. Wang, T. Hayat, and M. Oberlack. "Numerical solution of peristaltic transport of an Oldroyd 8-constant fluid in a circular cylindrical tube." Canadian Journal of Physics 87, no. 9 (September 2009): 1047–58. http://dx.doi.org/10.1139/p09-081.

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The present paper is concerned with the peristaltic flow of a non-Newtonian fluid in circular cylindrical tube. Long wavelength and low Reynolds number approximations are adopted in the problem definition. The non-Newtonian behaviour of the fluid is characterized by the constitutive equation of an Oldroyd 8-constant fluid. The governing nonlinear equation and boundary conditions are solved numerically by a suitable finite-difference method with an iterative scheme. It is seen that shear-thinning and shear-thickening phenomena can be explained through the chosen fluid model. The interaction of shear-thinning and shear-thickening effects with peristaltic motion is studied in detail with particular focus on the basic features of peristalsis such as flow characteristics, pumping characteristics, and trapping. It is found that pressure rise per wavelength against which peristalsis has to work as a positive displacement pump decreases in going from shear-thickening to shear-thinning fluids. Moreover, for strong shear-thinning fluids trapping does not appear. However, a trapped bolus occurs for a weak shear-thinning fluid and its size increases as the fluid is changing from shear thinning towards weak shear thickening. For strong shear-thickening fluids such increase in the size and circulation of bolus stops.

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34

Hasan-nezhad, Hossein, Mojtaba Yazdani, Mehdi Salami-Kalajahi, and Mohsen Jeddi. "Mechanical behavior of 3D GFRP composite with pure and treated shear thickening fluid matrix subject to quasi-static puncture and shear impact loading." Journal of Composite Materials 54, no. 26 (May 4, 2020): 3933–48. http://dx.doi.org/10.1177/0021998320922288.

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In this study, a new low-velocity shear impact test was introduced to carefully investigate the resistance of 3D E-glass fiber reinforced polymer composites with shear thickening fluid matrix. The shear thickening fluids were prepared by dispersing silica nano-particles in polyethylene glycol. Pure shear thickening fluid was modified by treating the silica surface with (3-Aminopropyl) triethoxysilane. Despite the low-velocity shear impact test, various experimental tests such as yarn pull-out, quasi-static puncture, flexibility and thickness tests were carried out to study the mechanical behavior of the composites. Results revealed the treated shear thickening fluid up to 60 wt% improves the performance of the impregnated samples against the yarn pull-out and puncture tests by 353% and 45%, respectively, and their shear impact resistance by 130% compared to the neat cases without noticeably affecting the fabric flexibility.

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35

Li, Wei Hua, and Xian Zhou Zhang. "Rheology of Magnetorheological Shear Thickening Fluids." Advanced Materials Research 32 (February 2008): 161–64. http://dx.doi.org/10.4028/www.scientific.net/amr.32.161.

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This paper presents fabrication and characterizing of a new functional material, magnetorheological shear thickening fluid (MRSTF), by mixing micron-sized magnetizable particles with nano-sized silica particle based shear thickening fluid. Dynamic properties of the MRSTF were characterized by using a parallel-plate rheometer. The effects of steady-state shear rate and magnetic field on MRSTF rheological properties were addressed. The suspension shows an abrupt increase in complex viscosity beyond a critical dynamic shear rate and a magnetic field controllable characteristic, as well as reversible.

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36

Gürgen, Selim. "Tuning the Rheology of Nano-Sized Silica Suspensions with Silicon Nitride Particles." Journal of Nano Research 56 (February 2019): 63–70. http://dx.doi.org/10.4028/www.scientific.net/jnanor.56.63.

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In this paper, a non-Newtonian fluid was fabricated dispersing nanosized silica particles in a polyethylene glycol medium. The rheology of the suspension was investigated in a stress-controlled rheometer under increasing shear rate. Based on the rheological measurements, the suspension exhibited shear thickening behavior which gives a drastic viscosity grow with the increase in the shear rate. In order to investigate the role of the micro-sized additive particles on the rheology of silica based suspension, silicon nitride particles were included in the suspension with three different concentrations. The results were discussed in terms of important parameters for the shear thickening mechanism such as critical shear rate, peak viscosity, thickening ratio and initial viscosity. According to the results, shear thickening behavior can be controlled altering the amount of silicon nitride particles in the suspension.

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37

Weerasinghe, Dakshitha, Damith Mohotti, and Jeremy Anderson. "Incorporation of shear thickening fluid effects into computational modelling of woven fabrics subjected to impact loading: A review." International Journal of Protective Structures 11, no. 3 (November 21, 2019): 340–78. http://dx.doi.org/10.1177/2041419619889071.

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Soft armour consisting of multi-layered high-performance fabrics are a popular choice for personal protection. Extensive work done in the last few decades suggests that shear thickening fluids improve the impact resistance of woven fabrics. Shear thickening fluid–impregnated fabrics have been proven as an ideal candidate for producing comfortable, high-performance soft body armour. However, the mechanism of defeating a projectile using a shear thickening fluid–impregnated multi-layered fabric is not fully understood and can be considered as a gap in the research done on the improvement of soft armour. Even though considerable progress has been achieved on dry fabrics, limited studies have been performed on shear thickening fluid–impregnated fabrics. The knowledge of simulation of multi-layered fabric armour is not well developed. The complexity in creating the geometry of the yarns, incorporating friction between yarns and initial pre-tension between yarns due to weaving patterns make the numerical modelling a complex process. In addition, the existing knowledge in this area is widely dispersed in the published literature and requires synthesis to enhance the development of shear thickening fluid–impregnated fabrics. Therefore, this article aims to provide a comprehensive review of the current methods of modelling shear thickening fluid–impregnated fabrics with a critical analysis of the techniques used. The review is preceded by an overview of shear thickening behaviour and related mechanisms, followed by a discussion of innovative approaches in numerical modelling of fabrics. A novel state-of-the-art means of modelling shear thickening fluid–impregnated fabrics is proposed in conclusion of the review of current methods. A short case study is also presented using the proposed approach of modelling.

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Ovarlez, Guillaume, Anh Vu Nguyen Le, Wilbert J. Smit, Abdoulaye Fall, Romain Mari, Guillaume Chatté, and Annie Colin. "Density waves in shear-thickening suspensions." Science Advances 6, no. 16 (April 2020): eaay5589. http://dx.doi.org/10.1126/sciadv.aay5589.

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Shear thickening corresponds to an increase of the viscosity as a function of the shear rate. It is observed in many concentrated suspensions in nature and industry: water or oil saturated sediments, crystal-bearing magma, fresh concrete, silica suspensions, and cornstarch mixtures. Here, we reveal how shear-thickening suspensions flow, shedding light onto as yet non-understood complex dynamics reported in the literature. When shear thickening is important, we show the existence of density fluctuations that appear as periodic waves moving in the direction of flow and breaking azimuthal symmetry. They come with strong normal stress fluctuations of the same periodicity. The flow includes small areas of normal stresses of the order of tens of kilopascals and areas of normal stresses of the order of hundreds of pascals. These stress inhomogeneities could play an important role in the damage caused by thickening fluids in the industry.

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Wang, Yan, Shu Kui Li, and Xin Ya Feng. "The Ballistic Performance of Multi-Layer Kevlar Fabrics Impregnated with Shear Thickening Fluids." Applied Mechanics and Materials 782 (August 2015): 153–57. http://dx.doi.org/10.4028/www.scientific.net/amm.782.153.

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This study investigates the ballistic penetration performance of aramid fabric impregnated with shear thickening fluid. The ballistic test was conducted at impact velocity of 445 m/s, and three types of shear thickening fluids prepared with silica particles of different sizes (200nm, 340nm and 480nm) are involved. The results demonstrate an enhancement in ballistic properties of fabric due to the impregnation of shear thickening fluids. The fabrics with smaller particle size show better ballistic performance. Microscopic observation of aramid fabric reveals that shear thickening fluids with smaller silica particles have a better adhesion on and between yarns, enhancinging the coupling effect between yarns. The corresponding mechanism was discussed in the paper.

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40

Wei, Minghai, Kun Lin, and Li Sun. "Shear thickening fluids and their applications." Materials & Design 216 (April 2022): 110570. http://dx.doi.org/10.1016/j.matdes.2022.110570.

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41

Shao, Qi, Shixiang Duan, Lin Fu, Binghai Lyu, Ping Zhao, and Julong Yuan. "Shear Thickening Polishing of Quartz Glass." Micromachines 12, no. 8 (August 13, 2021): 956. http://dx.doi.org/10.3390/mi12080956.

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Quartz glass is a typical optical material. In this research, colloidal silica (SiO2) and colloidal cerium oxide (CeO2) are used as abrasive grains to polish quartz glass in the shear thickening polishing (STP) process. The STP method employs the shear-thickening mechanism of non-Newtonian power-law fluid to achieve high-efficiency and high-quality polishing. The different performance in material removal and surface roughness between SiO2 and CeO2 slurries was analyzed. The influence of the main factors including polishing speed, abrasive concentration, and pH value on the MRR, workpiece surface roughness, and the surface topography was discussed. Two different slurries can both achieve fine quartz surface in shear thickening polishing with the polishing speed 100 rpm, and pH value 8. The quartz glass surface roughness Ra decreases from 120 ± 10 to 2.3 nm in 14 minutes’ polishing with 8 wt% 80 nm SiO2 slurry, and the MRR reaches 121.6 nm/min. The quartz glass surface roughness Ra decreases from 120 ± 10 to 2.1 nm in 12 minutes polishing by 6 wt% 100 nm CeO2 slurry and the MRR reaches 126.2 nm/min.

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42

LI, Min. "Shear-thickening Polishing of Si3N4 Ceramics." Journal of Mechanical Engineering 53, no. 9 (2017): 193. http://dx.doi.org/10.3901/jme.2017.09.193.

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Arada, Nadir. "Optimal Control of Shear-Thickening Flows." SIAM Journal on Control and Optimization 51, no. 3 (January 2013): 1940–61. http://dx.doi.org/10.1137/11085551x.

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Fall, Abdoulaye, Anaël Lemaître, and Guillaume Ovarlez. "Discontinuous Shear Thickening in Cornstarch Suspensions." EPJ Web of Conferences 140 (2017): 09001. http://dx.doi.org/10.1051/epjconf/201714009001.

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45

Hayakawa, Hisao, and Satoshi Takada. "Kinetic theory of discontinuous shear thickening." EPJ Web of Conferences 140 (2017): 09003. http://dx.doi.org/10.1051/epjconf/201714009003.

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Singh, Abhinendra, Jeffrey F. Morris, and Morton M. Denn. "Microstructural description of shear-thickening suspensions." EPJ Web of Conferences 140 (2017): 09023. http://dx.doi.org/10.1051/epjconf/201714009023.

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47

Nagahiro, Shin-ichiro, Hiizu Nakanishi, and Namiko Mitarai. "Experimental observation of shear thickening oscillation." EPL (Europhysics Letters) 104, no. 2 (October 1, 2013): 28002. http://dx.doi.org/10.1209/0295-5075/104/28002.

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48

Scirocco, Rossella, Jan Vermant, and Jan Mewis. "Shear thickening in filled Boger fluids." Journal of Rheology 49, no. 2 (March 2005): 551–67. http://dx.doi.org/10.1122/1.1849185.

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Melrose, J. R., J. H. van Vliet, and R. C. Ball. "Continuous Shear Thickening and Colloid Surfaces." Physical Review Letters 77, no. 22 (November 25, 1996): 4660–63. http://dx.doi.org/10.1103/physrevlett.77.4660.

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50

Bossis, Georges, Olga Volkova, Yan Grasselli, and Oumar Gueye. "Discontinuous shear thickening in concentrated suspensions." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377, no. 2143 (March 4, 2019): 20180211. http://dx.doi.org/10.1098/rsta.2018.0211.

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The flow of concentrated suspensions of solid particles can be suddenly blocked by the formation of a percolated network of frictional contacts above a critical value of the applied stress. Suspensions of magnetic particles coated with a superplastifier molecule were shown to produce a strong jamming transition. We find that, for these suspensions with an abrupt discontinuous shear thickening, a model using the divergence of the viscosity at a volume fraction that depends on the applied stress does not well describe the observed behaviour both below and above the critical stress. At a constant applied stress above the critical one, we have a stick–slip behaviour of the shear rate whose period can be predicted and scaled as the square root of the relaxation time of the frictional contacts. The application of a small magnetic field allows us to continuously decrease the critical shear rate, and it appears that the yield stress induced by the magnetic field does not contribute to the jamming transition. Finally, it is shown that this jamming transition also appears in the extrusion of a suspension through a die, but with a much slower dynamics than in the case of stress imposed on a rotational geometry. This article is part of the theme issue ‘Heterogeneous materials: metastable and non-ergodic internal structures’.

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