Relevant bibliographies by topics / Shear thickening

Academic literature on the topic 'Shear thickening'

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Published: 4 June 2021
Last updated: 25 May 2024

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Journal articles on the topic "Shear thickening"

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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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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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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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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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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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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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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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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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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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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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Dissertations / Theses on the topic "Shear thickening"

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Shah, Ashish, and ashishshah7@yahoo co in. "Rheology of Shear Thickening Mineral Slurries." RMIT University. Civil, Environmental and Chemical Engineering, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080725.133946.

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Abstract In order to improve the optimisation of mineral processing operations the rheological properties of slurries must be determined as accurately as possible under the conditions that closely resemble actual site conditions. The rheology of particles suspended in Newtonian fluids is well documented. However, the rheology of particles in non-Newtonian fluids has not been the subject of much investigation till now. The work conducted here attempts to fill this gap in knowledge. The rheological properties of slurries are heavily dependent on the solids concentrations and particle-solid interaction. At low solids concentrations, constant viscosity and Newtonian behaviour is observed, but as solids concentration increases the rheological behaviour becomes increasingly complex and non-Newtonian with viscosity becoming dependent on the shear rate. The nature of the non-Newtonian behaviour depends on the solid concentration, particle shape, particle size, particle size distribution and the suspending liquid rheological properties. The suspension/slurry may develop a yield stress and become time dependent in nature as structures develop within the fluid at higher solids concentrations. This study however, is primarily focused on the measurement of the rheological properties, where it is assumed that the fluid will be fully sheared and that the rheological properties will be unlikely to change with time. Shear thickening behaviour of slurries was the focus of this work. The aim was to investigate the slurry concentration region where shear thickening occurs. The first objective of the project was to develop a fluid analogue which will have similar rheological behaviour to that of concentrated tailings from gold mines so that it can be used as a test material to simulate the flow behaviour of the tailings in a pipe. The second objective of this project was to enable the prediction of flow behaviour in the pipe loop under certain conditions using the fluid analogue for slurry from Sunrise dam. In order to achieve the objectives, experiments were carried out to obtain a fluid analogue of a shear thickening slurry. CSL 500 and SR 200 rheometers were used for the characterisation of different fluid analogues and shear thickening mineral slurries. Malvern Sizer, model: mastersizerX v1.1, was used to obtain particle size distributions. A mini pipe loop system, located in the laboratory of the Rheology and Materials Processing Centre (RMPC) was used to get pipe line flow data for comparison with the rheometer data. A few fluid analogues with different suspending medium and different concentrations of glass spheres was tested before finally using, 48 vol% glass spheres in 1.8 wt% CMC solution as a fluid analogue for the mineral tailings obtained from Sunrise dam, WA. For comparison between the pipe line and rheometer data, all pipe line data (in the form of 8V/D) were converted to rheometer data (in the form of du/dr) using the Robinowitsch-Mooney equation. The above comparison indicated that it is possible to produce fluid analogue to simulate the flow behaviour of Sunrise dam slurry using a shear thinning suspending medium with high concentration of glass particles. Shear thickening flow behaviour was clearly observed in the rheometer while it was less predominant in a pipe line flow.
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Madraki, Fatemeh. "Shear Thickening in Non-Brownian Suspensions." Ohio University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1584354185678102.

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Sadrizadeh, Sasan. "Instabilities in Pulsating Pipe Flow of Shear-Thinning and Shear-Thickening Fluids." Thesis, Linköpings universitet, Mekanisk värmeteori och strömningslära, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-82037.

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In this study, we have considered the modal and non-modal stability of fluids with shear-dependent viscosity flowing in a rigid straight pipe. A second order finite-difference code is used for the simulation of pipe flow in the cylindrical coordinate system. The Carreau-Yasuda model where the rheological parameters vary in the range of 0.3 < n < 1.5 and 0.1 < λ < 100 is represents the viscosity of shear- thinning and shear thickening fluids. Variation of the periodic pulsatile forcing is obtained via the ratio Kω/Kο and set between 0.2 and 20. Zero and non-zero streamwise wavenumber have been considered separately in this study. For the axially invariant mode, energy growth maxima occur for unity azimuthal wave number, whereas for the axially non-invariant mode, maximum energy growth can be observed for azimuthal wave number of two for both Newtonian and non-Newtonian fluids. Modal and non-modal analysis for both Newtonian and non-Newtonian fluids show that the flow is asymptotically stable for any configuration and the pulsatile flow is slightly more stable than steady flow. Increasing the maximum velocity for shear-thinning fluids caused by reducing power-low index n is more evident than shear-thickening fluids. Moreover, rheological parameters of Carreau-Yasuda model have ignored the effect on the peak velocity of the oscillatory components. Increasing Reynolds number will enhance the maximum energy growth while a revers behavior is observed by increasing Womersley number.
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Andrew, Chryss, and andrew chryss@rmit edu au. "Pipeline Transport of Coarse Mineral Suspensions Displaying Shear Thickening." RMIT University. Civil, Environmental and Chemical Engineering, 2008. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20081127.112225.

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Transport properties of concentrated suspensions are of interest to many industries. Mineral slurries at higher solids concentrations have shown some rheologically interesting characteristics such as shear thickening, the increase of viscosity of a multi-phase mixture with increasing shear rate. The general literature on the rheology of suspensions records the presence of yield stresses, shear thinning and normal stress differences. Little is said specifically about shear thickening behaviour except for colloidal suspensions. The aim of this study is to examine the behaviour of coarse shear thickening suspensions and determine the causes of this phenomenon. The study intended to achieve the following objectives to; develop the appropriate techniques for rheometric studies of shear thickening suspensions; investigate the nature of particle-fluid interaction; develop a model of shear thickening behaviour as it occurs in non-colloidal suspensions and to develop a method of applying the rheology results to flows and flow geometries of practical relevance. The effects of wall slip dominate much of the literature of shear thickening materials. To investigate this aspect a significant portion of the experimental work examined the effect of shear thickening on torsional flow. The rheogram produced from parallel plate rheometry was reassessed as a non-controlled flow and a rheology model dependant analysis demonstrated that the effects of slip are considerably more problematic for shear thickening suspensions, particularly as wall slip is an increasing function of shear stress. As a consequence of the rheometric method described above it was observed that the rate of change of the first normal stress difference, N1, with shear rate changes as shear thickening commences for non-colloidal suspensions. N1 is initially negative and is increasingly negative at low shear rates. Additional rheometric analysis examined the transient effects in the behaviour of a non-colloidal shear thickening suspension. By employing large angle oscillating strain tests the strain required to initiate a shear thickening response was determined. Coherent back scattering of laser light experiments were able to show the change in orientation of the particles with respect to its rotation around the vorticity axis. After a viscosity minimum was reached the orientation became more random as particle rotation and lamina disruption occurred. This was considered to be the cause of the measured shear thickening. A model of shear thickening in concentrated, non-colloidal suspensions of non-spherical particles was developed. Based on hydrodynamic interaction in the Stokes flow regime, the flow of interstitial fluid subjected the adjacent particles to lubricating and Couette type forces, acting as a couple. When a series of force balances on a particle contained between two moving laminae are conducted as a time sequence, the particle orientation and motion can be observed. The model has qualitative agreement with several aspects of the experimentally observed behaviour of shear thickening suspensions, such as viscosity change with shear rate and concentration, and the first normal stress difference increasing with shear rate. Pipe line flow experiments were conducted on the model suspension. Particle settling produces unusual patterns in shear thickening suspensions, with an annulus of delayed settling near the wall.
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Petel, Oren. "Response of shear thickening materials to uniaxial shock compression." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=104531.

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The present study is an experimental and computational investigation of shock wave propagation in multiphase suspensions. Particle suspensions are used as a means of obtaining a system in which there is limited initial inter-particle contacts with a large degree of parametric variability. The suspensions were prepared in ethylene glycol at several volume fractions (41%, 48%, and 54%) of silicon carbide particles, mixtures that have been shown to be shear thickening in rheological studies. The dynamic response of the shear thickening fluids is investigated in ranges of deformation relevant to ballistic impacts.A series of plate impact experiments were conducted to obtain the shock Hugoniots of the various suspensions at particle velocities in the range of 200-900 m/s. The experimental results show a transition in the wave propagation behaviour from a regime of propagation dominated by the compressibility of the liquid phase of the suspension to a regime where the response of the mixture becomes dominated by inter-particle contact networks. The transition in the shock Hugoniots of the suspensions indicates a shock-induced stiffening of the suspensions. In situ longitudinal and lateral stress measurements are made in the intermediate volume fraction suspension at two different impact velocities demonstrating a deviatoric stress component to the stress state within the suspension.Analytical and numerical models are employed to demonstrate the likely cause of the transition in the behaviour of the suspensions, resulting from the variation in the solid phase volume fraction of the suspension with increasing shock wave strengths. The results are discussed in terms of the development of extensive inter-particle contacts in a compression-induced mechanism analogous to classical shear thickening in dense suspensions.
Cette etude est une etude experimentale et numerique de la propagation des ondes de choc dans les suspensions polyphasiques. Des suspensions de particules sont utilisees comme un moyen d'obtenir un systeme dans lequel le contact initial entre les particules est limite et il y a un grand degre de variabilite parametrique. Les suspensions ont ete preparees dans l'ethylene glycol `a plusieurs fractions de volume (41%, 48% et 54%) de particules de carbure de silicium, des m´elanges qui se sont reveles etre rheoepaississantes dans les etudes rheologiques. La reponse dynamique des fluides rheoepaississents est etudiee dans une gamme des deformations pertinentes aux impacts balistiques.Une serie d'experiments d'impact de plaque ont ete menees pour obtenir les Hugoniots des chocs des differentes suspensions de particules a des vitesses dans l'ordre de 200-900 m/s. Les resultats experimentaux montrent une transition dans le comportement de propagation des ondes d'un regime de propagation domine par la compressibilite de la phase liquide de la suspension a un regime ou la reponse du melange devient dominee par les reseaux de contacts inter-particules. La transition dans le Hugoniots des choc des suspensions indique un choc induit par le raidissement de la suspension. Des mesures des contraintes longitudinales et laterales in situ sont en suspension dans la fraction volumique intermediaires a deux vitesses d'impact differentes demontrant une composante contrainte deviatorique a l'etat de stress au sein de la suspension.Des modeles analytiques et numeriques sont utilises pour demontrer la cause probable de la transition dans le comportement des suspensions, resultant de la variation de la fraction volumique de phase solide de la suspension avec des ondes de choc croissantes. Les resultats sont discutes en termes de developpement de contacts entre les particules etendu dans un mecanisme de compression induites par cisaillement classique analogue a un epaississement de suspensions denses.
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Zhu, Weijie Kelvin. "Numerical analysis of shear thickening fluids for blast mitigation applications." Monterey, California. Naval Postgraduate School, 2011. http://hdl.handle.net/10945/10717.

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Improvised Explosive Devices (IEDs) have evolved over the years to become one of the main causes of casualties and fatalities in recent conflicts. One area of research focuses on the improvement of blast attenuation using Shear Thickening Fluid (STF). The STF is a dilatant material, which displays non-Newtonian characteristics in its unique ability to transit from a low viscosity fluid to a high viscosity fluid. Although empirical research and computational models using the non-Newtonian flow characteristics of STF have been conducted to study the effects of STF on blast mitigation, to the author's best knowledge, no specific research has been performed to investigate the STF behavior by modeling and simulation of the interaction between the base flow and embedded rigid particles when subjected to shear stress. The model considered the Lagrangian description of the rigid particles and the Eulerian description of fluid flow. The numerical analysis investigated key parameters such as applied flow acceleration, particle distribution arrangement, volume concentration of particles, particle size, particle shape, and particle behavior in Newtonian and Non-Newtonian fluid base. The fluid-particle interaction model showed that the arrangement, size, shape and volume concentration of particles had a significant effect on the behavior of STF. Although non-conclusive, the addition of particles in Non-Newtonian fluids showed a promising trend of better shear thickening effect at high shear strain rates.
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Tabassum, Maisha. "Mechanical and Energy-Absorbing Properties of Shear-Thickening Fluids (STFs)." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/16856.

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The absorption of dynamic energy during impact of a material is ubiquitous in industrial, biomedical and military applications. From suspension systems to shock absorbers, the ability to divert or dissipate dynamic energy imposes many challenges in developing these systems. Some typical complex composite fluids, such as shear-thickening fluids (STFs), play a vital role in these challenges. STFs, classified as non-Newtonian fluids, are special fluidic composites of dense suspensions which dramatically change their viscosity when subjected to a change in shear rate or stress. These fluidic composite materials display unusual phase transitions between liquid and “solid” phases, due to recoverable changes in viscosity at a critical rate of shear. In recent years, STFs have stimulated much research interest, in which most studies have been focused on the rheological and energy absorption properties of fabrics soaked with STF under impact. The fundamental knowledge of STFs after their shear-thickening transition is still unarticulated. Without full understanding of the fundamental structure-property relationships of STFs after shear-thickening transition it would not be able to design and optimize a material system with STFs, nor could cost-effective development of STFs as energy-absorbing materials be achieved. The aim of the studies in this thesis is to establish fundamental knowledge in developing STFs as adaptive energy-absorbing materials in practical applications. The studies establish methods and approaches for investigating and characterizing the mechanical as well as the energy-absorbing/dissipation properties of a STF systematically after the shear-thickening transition. The STF adopted in this work was composed of 58 vol.% dispersion of styrene/acrylate particles in ethylene glycol. Microscopic examination was conducted to characterize the size, geometry and distribution of styrene/acrylate particles in the STF, and the rheological behaviours of the STF were measured. Double-cantilever-beam specimens with the STF as adhesive layer were adopted to characterize the mode-I fracture energy of the STF at different crack opening displacement rates, following classic fracture mechanics. High-speed digital video-photography was used to observe the deformation behaviour of the STF. The load-displacement curve as well as the high-speed video recording confirmed that the STF showed a “solid” behaviour at high rates by developing rapid but stable crack extension that corresponded to fracture behaviour. The results indicated that the displacement rate and the STF thickness had a significant effect on the magnitude of the mode-I fracture energy of the STF. The fracture energy increased with an increase in the displacement rate, while a plateau value of about 240 J/m2 was observed at high rates. The measured fracture energy can be used as an effective parameter characterizing the crack resistance or the energy-absorbing capacity of the STF in the solid phase. The lap-shear strength and the braking energy of the STF were quantitatively characterized by a modified single-lap shear test method, performed by using two stainless steel adherends with the STF as adhesive layer. The results indicated that the shear rate had a significant effect on lap shear strength and the braking energy of the STF. Moreover, the studies were conducted to quantitatively characterize the energy absorption capacity of the STF under penetration impact and pull-out fracture at different impact or pull-out speeds. The results confirmed that the penetration rate again had a significant effect on the energy absorbing capacity of the STF. In comparisons with the energy absorbing behaviour of some cellular materials in the literature, the STF outperformed a polyurethane foam in terms of energy absorbing capacity. The ability of a STF to maintain its reversible shear-thickening transition behaviour depends on the integrity and durability of the STF. Cyclic dynamic loading at different magnitudes of durations was applied to the STF in order to quantitatively evaluate its aging behaviour. It was observed that cyclic dynamic loading affected the shear-thickening behaviour of the STF because of deterioration of the styrene/acrylate particles caused by abrasive wear during interaction between them, based on the rheological characterization. This research has delivered some new and original results for solutions to the outstanding problems in developing STFs as energy-absorbing materials. It should bring new opportunities for the development of new and advanced material systems with STFs for practical applications.
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Swarna. "Rheology of shear thickening fluids and their effect on energy dissipation of impregnated fabrics." Thesis, IIT, Delhi, 2019. http://eprint.iitd.ac.in:80//handle/2074/8071.

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Bettin, Giorgia. "Energy absorption of reticulated foams filled with shear-thickening silica suspensions." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33904.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.
Includes bibliographical references (p. 92-98).
The need for smarter and adaptive, energy absorption materials especially for human protection applications has fueled the interest in new and alternative energy absorbing composites. In this thesis a 'novel' energy absorbing fluid-composite that utilized a shear thickening fluid is developed. Shear-thickening fluids are a class of field responsive fluids that have the ability to transition from low viscosity to high viscosity under an imposed deformation field. Two different types of silica particles are used to create shear thickening fluids. The first are polydisperse and non spherical, with a median diameter of 1.7 ± 1.4 micrometer, while the second are monodisperse spherical particles of 0.3 ± 0.03 micrometer diameter. The particles are dispersed in ethylene glycol at volume fractions of up to [phi]=47% for the polydisperse sample and up to [phi]=60% for the monodisperse spheres. The behavior of the silica suspensions is studied under steady shear, small and large amplitude oscillatory shear flow and also in transient extensional flow. The viscosity of the polydisperse suspension is found to be much greater than the monodisperse one due to the difference in particles shape. Oscillatory experiments indicate that both the onset and magnitude of the shear thickening depends on the frequency and strain applied and show that rapid time-varying deformations result in maximum energy dissipation.
(cont.) Two different regimes are found through extensional flow measurement: at low extension rates the suspensions respond as a viscous rate-thinning fluid, whereas beyond a critical extension rate, the suspension strain-hardens and ultimately fractures in a solid-like fashion. Polyurethane open cell or 'reticulated' foam with relative density of 0.03 and average cell size of 360 micrometer is chosen to envelop the concentrated silica suspensions. The behavior of this nonlinear fluid-solid composite is studied over a range of filling fractions under quasi-static deformation rates (strain rates between 10⁻² - s⁻¹ ), under dynamic impact loading (with energy densities of e = 10⁵ - 10⁶ J/m³) and under high strain-rate deformations (strain rates up to 800 s⁻¹). Results show that, if the foam is filled with a shear thickening suspension, the composite stiffens even at strain rates of 10⁻² s⁻¹ as the impregnated fluid shear-thickens due to the high local strain rates that develop on cellular length scales. High impact load experiments show two different mechanisms for energy absorption: at lower impact energies viscous dissipation is dominant; whereas, after a critical impact energy is reached, the fluid undergoes a transition from liquid-like to solid-like. High-speed digital video-imaging shows that cracks form and propagate through the sample and the impact energy is absorbed by viscoplastic deformation.
(cont.) The addition of these shear-thickening fluids in polyurethane foam is shown to increase the composite energy absorption capability by 35-fold.
by Giorgia Bettin.
S.M.
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Hasib, Mohammad Tarik. "Vibration Control of Sandwich Beams by Integration of Shear Thickening Fluid." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13520.

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A group of materials that have recently gained a lot of attention in research are shear thickening fluids (STF). A shear thickening fluid (STF) is a material whose viscosity increases significantly when the shear strain rate is at critical value. Most shear thickening fluids are designed by using a colloidal suspension of solid particles in a liquid matrix. This allows solidification of the fluid by congregation of the particles under stress. In this study the experimental findings are focused on assessing the mechanical property of shear thickening fluid (STF) after its transition to a solid phase. On account of determining the shear modulus of STF, bending tests were performed on simply-supported sandwich beam made of double carbon epoxy beams with a STF layer. The stiffness of sandwich beam with STF was evaluated for various midpoint displacements varying from 3 mm to 8 mm at fixed crosshead value of maximum speed 50 mm/s and also at different crosshead values from 10 mm/s to 50 mm/s with a maximum displacement of 8 mm. The numerical value of STF’s shear modulus was calculated by using laminate beam theory. The value obtained for the shear modulus of STF is 0.16 MPa. The experimental result was also compared with FEA by using ANSYS where error is no more than 10%. The special interest is also given to investigate the feasibility of integrating STF into a sandwich cantilever beam with the aim of evaluating the damping capacity and stiffness. The response of shear thickening fluid which is the dispersion of styrene/acrylate particles in ethylene glycol was studied to find critical strain rate at different angular frequency. Experiments are also conducted with a carrier fluid layer between two beams and also two beams glued together with epoxy resin. Considering the boundary conditions, the resonance frequency of the sandwich cantilever beam is obtained from the experiments. The dynamic stiffness of the STF sandwich beam shows better result comparing with the beam with carrier fluid and beams with glued together. As the damping ratio of STF integration with sandwich beam performs better than others, the control of vibration caused by dynamic loading is improved while using STF. Without any external energy source, internal property of shear thickening fluid transforms from liquid phase to a solid phase and absorbs energy caused by vibration.
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Books on the topic "Shear thickening"

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Gürgen, Selim, ed. Shear Thickening Fluid. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-35521-9.

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Gürgen, Selim, ed. Shear Thickening Fluid. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9.

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Gürgen, Selim, ed. Shear Thickening Fluids in Protective Applications. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-42951-4.

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Gürgen, Selim, ed. Smart Systems with Shear Thickening Fluid. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-53570-3.

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Joshi, Anil Kumar. Wall shear stress and intimal thickening in the right coronary artery. 2004.

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Book chapters on the topic "Shear thickening"

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Gooch, Jan W. "Shear Thickening." In Encyclopedic Dictionary of Polymers, 657. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10534.

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Mawkhlieng, Unsanhame, Mukesh Bajya, and Abhijit Majumdar. "Shear Thickening Fluid–Based Protective Structures Against Low Velocity Impacts." In Shear Thickening Fluid, 115–38. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_7.

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Gürgen, Selim. "Introduction." In Shear Thickening Fluid, 1–2. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_1.

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Man, Ziyan, and Li Chang. "Shear Thickening Fluid in Surface Finishing Operations." In Shear Thickening Fluid, 99–114. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_6.

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Bhalla, Neelanchali Asija. "Shear Thickening Fluid-Based Protective Structures Against High Velocity Impacts." In Shear Thickening Fluid, 139–52. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_8.

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Montenegro, Miguel, Laura Campo-Deaño, and Francisco J. Galindo-Rosales. "Rheology of Shear Thickening Fluid." In Shear Thickening Fluid, 3–32. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_2.

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Sheikhi, Mohammad Rauf, Selim Gürgen, and Melih Cemal Kuşhan. "Vibration Damping Systems with Shear Thickening Fluid." In Shear Thickening Fluid, 77–97. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_5.

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Gong, Xinglong, Junshuo Zhang, and Shouhu Xuan. "Multi-Functional Systems Based on Shear Thickening Fluid." In Shear Thickening Fluid, 53–75. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_4.

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Sheikhi, Mohammad Rauf, and Mahdi Hasanzadeh. "Multi-Phase Shear Thickening Fluid." In Shear Thickening Fluid, 33–51. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-25717-9_3.

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Chatterjee, Victor Avisek, Seema Singh, and Swati Neogi. "Energy Dissipation in Shear Thickening Fluid Integrated Structures Under Ballistic Impacts." In Shear Thickening Fluid, 131–62. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-35521-9_7.

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Conference papers on the topic "Shear thickening"

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Usher, Shane, Rudolf Spehar, and Peter Scales. "Shear effects in thickening." In Thirteenth International Seminar on Paste and Thickened Tailings. Australian Centre for Geomechanics, Perth, 2010. http://dx.doi.org/10.36487/acg_rep/1063_32_usher.

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Ball, R. C., and J. R. Melrose. "Shear thickening in colloidal dispersions." In The 8th tohwa university international symposium on slow dynamics in complex systems. AIP, 1999. http://dx.doi.org/10.1063/1.58445.

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Ashrafi, Nariman, and Habib Karimi Haghighi. "Shear-Thickening Flow Between Coaxial Cylinders." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-03038.

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The effects of nonlinearities on the stability are explored for shear thickening fluids in the narrow-gap limit of the Taylor-Couette flow. 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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Soutrenon, Mathieu, and Véronique Michaud. "Structural damping using encapsulated shear thickening fluids." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Henry A. Sodano. SPIE, 2012. http://dx.doi.org/10.1117/12.915143.

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Ashrafi, Nariman, and Habib Karimi Haghighi. "Stability of Shear-Thickening Liquids Between Rotating Cylinders." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39854.

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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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Ashrafi, Nariman, Albert Co, Gary L. Leal, Ralph H. Colby, and A. Jeffrey Giacomin. "Stability of Shear Thickening Flow between Rotating Cylinders." In THE XV INTERNATIONAL CONGRESS ON RHEOLOGY: The Society of Rheology 80th Annual Meeting. AIP, 2008. http://dx.doi.org/10.1063/1.2964671.

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Petel, Oren E., Andrew J. Higgins, Mark Elert, Michael D. Furnish, William W. Anderson, William G. Proud, and William T. Butler. "Planar Impact Study of a Shear Thickening Fluid." In SHOCK COMPRESSION OF CONDENSED MATTER 2009: Proceedings of the American Physical Society Topical Group on Shock Compression of Condensed Matter. AIP, 2009. http://dx.doi.org/10.1063/1.3295189.

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Tongfei Tian, Weihua Li, Jie Ding, Gursel Alici, and Haiping Du. "Study of the temperature effect of shear thickening fluid." In 2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM). IEEE, 2013. http://dx.doi.org/10.1109/aim.2013.6584197.

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Nenno, Paul T., and Eric D. Wetzel. "Rate-dependent extensional "dynamic ligaments" using shear thickening fluids." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Wei-Hsin Liao. SPIE, 2014. http://dx.doi.org/10.1117/12.2059833.

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Sarkar, Reuben, and James L. Linden. "Theoretical Advantages of Shear Thickening Behavior in Automatic Transmission Fluids." In 2003 JSAE/SAE International Spring Fuels and Lubricants Meeting. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2003. http://dx.doi.org/10.4271/2003-01-1986.

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Reports on the topic "Shear thickening"

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Hosur, Mahesh, Norman Wagner, C. T. Sun, Vijaya Rangari, Jack Gillespie, Shaik Jeelani, and Hassan Mahfuz. Development of Flexible Extremities Protection utilizing Shear Thickening Fluid/Fabric Composites. Fort Belvoir, VA: Defense Technical Information Center, January 2012. http://dx.doi.org/10.21236/ada571815.

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Nenno, Paul, Wai Chin, and Eric D. Wetzel. Flammability Testing of Fabrics Treated with Oil-Based Shear Thickening Fluids. Fort Belvoir, VA: Defense Technical Information Center, May 2014. http://dx.doi.org/10.21236/ada601457.

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Chin, Wai K., and Eric D. Wetzel. Breathability Characterization of Ballistic Fabrics, Including Shear Thickening Fluid-Treated Fabrics. Fort Belvoir, VA: Defense Technical Information Center, March 2008. http://dx.doi.org/10.21236/ada478300.

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