Relevant bibliographies by topics / Shear thickening fluid

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  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
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Academic literature on the topic 'Shear thickening fluid'

Author: Grafiati
Published: 4 June 2021
Last updated: 21 February 2023

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Journal articles on the topic "Shear thickening fluid"

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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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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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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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Bouchendouka, Abdellah, Zine El Abiddine Fellah, Zakaria Larbi, Nicholas O. Ongwen, Erick Ogam, Mohamed Fellah, and Claude Depollier. "Flow of a Self-Similar Non-Newtonian Fluid Using Fractal Dimensions." Fractal and Fractional 6, no. 10 (October 11, 2022): 582. http://dx.doi.org/10.3390/fractalfract6100582.

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In this paper, the study of the fully developed flow of a self-similar (fractal) power-law fluid is presented. The rheological way of behaving of the fluid is modeled utilizing the Ostwald–de Waele relationship (covering shear-thinning, Newtonian and shear-thickening fluids). A self-similar (fractal) fluid is depicted as a continuum in a noninteger dimensional space. Involving vector calculus for the instance of a noninteger dimensional space, we determine an analytical solution of the Cauchy equation for the instance of a non-Newtonian self-similar fluid flow in a cylindrical pipe. The plot of the velocity profile obtained shows that the rheological behavior of a non-Newtonian power-law fluid is essentially impacted by its self-similar structure. A self-similar shear thinning fluid and a self-similar Newtonian fluid take on a shear-thickening way of behaving, and a self-similar shear-thickening fluid becomes more shear thickening. This approach has many useful applications in industry, for the investigation of blood flow and fractal fluid hydrology.
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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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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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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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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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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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Bouchendouka, Abdellah, Zine El Abiddine Fellah, Zakaria Larbi, Zineeddine Louna, Erick Ogam, Mohamed Fellah, and Claude Depollier. "Fractal Analysis of a Non-Newtonian Fluid Flow in a Rough-Walled Pipe." Materials 15, no. 10 (May 22, 2022): 3700. http://dx.doi.org/10.3390/ma15103700.

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The fully developed laminar flow of a viscous non-Newtonian fluid in a rough-walled pipe is considered. The fluid rheology is described by the power–law model (covering shear thinning, Newtonian, and shear thickening fluids). The rough surface of the pipe is considered to be fractal, and the surface roughness is measured using surface fractal dimensions. The main focus of this study lies in the theoretical investigation of the influence of the pipe surface roughness on the velocity profile and the Darcy friction factor of an incompressible non-Newtonian fluid. The plotted results demonstrate that shear thinning fluids are the most sensitive to the surface roughness compared with Newtonian and shear thickening fluids. For a particular value of the surface fractal dimension, there exists an intersection point where shear thinning, Newtonian, and shear thickening fluids behave the same way regarding the amplitude of the velocity profile and the friction factor. This approach has a variety of potential applications, for instance fluid dynamics in hydrology, blood flow in the cardiovascular system, and many industrial applications.
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Dissertations / Theses on the topic "Shear thickening fluid"

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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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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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Xu, Yue. "Stabbing resistance of soft ballistic body armour impregnated with shear thickening fluid." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/stabbing-resistance-of-soft-ballistic-body-armour-impregnated-with-shear-thickening-fluid(c5e8d517-6d46-4049-960c-383b10245800).html.

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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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Cui, Xiaoyu. "Drop-weight Impact Behaviour of a Shear Thickening Fluid in a Finite Volume." Thesis, The University of Sydney, 2021. https://hdl.handle.net/2123/25941.

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This thesis aims to study and explore the drop-weight impact-induced solidification process of an STF, consisting of 58 vol% styrene/acrylate particles in ethylene glycol, in a finite volume. The study begins with the characterisation of the mechanical behaviours (i.e., rheological and confined compression behaviours) of the STF. Low-velocity drop-weight impact experiments are conducted to investigate the effect of the STF’s dimensions in a finite volume on the impact behaviour of the STF. It is found that the impact behaviour is related to both the depth and the diameter of the STF. A new model is therefore proposed that the solidification front of an STF advances linearly to the impact velocity with a constant ratio in both the normal and radial directions, respectively, forming a semi-ellipse-like region which is captured by a direct observation with a high-speed camera. When this front propagates to one boundary, a force transmits back to the impact head. The interaction is detected by the load cell and piezoelectric transducers at the boundaries. Moreover, the coupled Eulerian-Lagrangian model and the volume of fluid model are adopted to simulate the development of the solidification front. In both models, the continuous propagation of the solidification front is depicted by expanding of a high-strain-rate region in all directions. The energy absorption under the drop-weight impact is found to decrease with an increase in the depth or width dimension of the STF before their critical dimension is reached due to the extension of the solidification period. Finally, the displacement-control oscillations are conducted on the STF to further explore its reciprocating performance for characterising the resistant force and energy absorption. It is found that the amplitude of displacement has a clear effect on the resistant force and energy absorption, while the frequency has little influence on them after the activation of the shear thickening.
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Ramirez, Jose G. (Jose Guadalupe) 1980. "Characterization of shear-thickening fluid-filled foam systems for use in energy absorption devices." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32777.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.
Includes bibliographical references (leaf 44).
The absorption of energy during impacts is ubiquitous in society. From our car seats to body armor, the ability to divert or dissipate unwanted energy is an aspect that has many engineering challenges. One approach to this issue is the use of fluid-filled elastomeric foams. In the present thesis, the fluid within these foams is a non-Newtonian shear-thickening fluid composed of 300 nm silica particles suspended in a solvent, ethylene glycol, at high concentrations, 45-55 %. The field of energy absorption using elastomeric foams has been extensively researched in industry. In addition, the effects and mechanism driving shear-thickening fluids (STF's) has also been well studied in industries involving particle suspensions, such as paints and medical applications. This research intends to combine the analysis of these two systems in an effort to characterize advanced energy absorption mechanism. It was found that the primary factors dominating fluid filled foams containing this STF are the volume fractions and compressional strain rate. In addition, the energy absorption capability of these foams has been compared to that of 'dry' foams and Newtonian-fluid filled foams, and has demonstrated an increase in energy absorption capabilities.
by Jose G. Ramirez.
S.B.
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Cheng, Jialun. "Striker Shape Effect on Low-velocity Impact Energy Absorption of a Shear Thickening Fluid." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/22694.

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This thesis aimed to systematically investigate striker shape effect on the mechanical behaviours and energy absorption capabilities of a shear thickening fluid (STF) under low-velocity impact tests. STF is a non-Newtonian colloidal suspension system with a preferable energy absorption capability under both low-velocity and high-velocity impact. This study’s STF consisted of 58.8 vol. % styrene/acrylate co-polymer particles in an ethylene glycol medium. First, rheology tests and scanning electron microscope tests were implemented to study the shear thickening behaviour and submicron-configuration morphology of the styrene/acrylate co-polymer particles, respectively. Subsequently, to investigate the energy absorption properties of this material, low-velocity impact tests were performed by using five types of strikers under various low-impact velocities, with one cone-shaped striker and four cylindrical flat-head strikers with different diameters. The sharp cone-shaped striker was recorded to have lower energy absorption, in comparison with the flat-headed cylindrical striker with the same diameter under all impact velocities. For the cylindrical flat-head strikers, the absorbed energy increased with an increase in the diameter of the striker, although the displacement decreased. These phenomena were attributed to both confinements from the side and bottom boundary towards the STF. In this case, the boundary effect was another factor playing an important role in the low-velocity impact energy absorption, especially with an increase in striker size. In addition, high-speed photography showed cracking in the STF during the impact, indicating the solid-like behaviour of the STF under impact. In this study, energy absorption was assumed to have two stages, before and after the jamming (solidification) zone reached the bottom boundary, which were recognised as the solidification stage and deformation stage, respectively. The impact-activated solidification mechanism indicated that the energy absorption capability depended on the size of the solidification zone. A larger striker is able to produce a larger solidification zone. As the deformation stage in this study, which consisted of an elastic deformation zone and nonlinear deformation zone. For the energy absorption in the deformation stage, using the striker with a cone-shaped head also led to less impact energy absorption in the deformation stage. According to the experimental results, higher impact velocity was able to increase the energy absorption in the deformation stage. In conclusion, the majority of energy absorption occurred in the deformation stage. In other words, an enormous amount of the impact energy was absorbed after the solidification of the STF, rather than during the solidifying process.
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Anderson, Brian. "Development of a non-Newtonian latching device." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/3855.

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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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Book chapters on the topic "Shear thickening fluid"

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Sharma, Anshuman, Tanishq Uppal, Virendra Singh, Preeti Joshi, and R. K. Tyagi. "Finite Element Analysis of Soft Body Armour Using Shear Thickening Fluid." In Lecture Notes in Mechanical Engineering, 57–66. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4684-0_7.

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Marín-Santibáñez, Benjamín M., José Pérez-González, Rodrigo Sánchez, and Francisco Rodríguez-González. "Visualization of Vorticity Banding in a Shear Thickening Micellar Solution in Couette Flow." In Experimental and Theoretical Advances in Fluid Dynamics, 411–18. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-17958-7_36.

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Mishra, Vagish D., Ashish Mishra, Avinash Singh, Luv Verma, and G. Rajesh. "Ballistic Study of Shear Thickening Fluid Impregnated Unidirectional Ultra-High Molecular Density Polyethylene Fabric." In Recent Advances in Applied Mechanics, 125–34. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9539-1_9.

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Li, Wei Hua, and Xian Zhou Zhang. "Rheology of Magnetorheological Shear Thickening Fluids." In Frontiers in Materials Science and Technology, 161–64. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-475-8.161.

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Shinbrot, Troy. "Rheology in Complex Fluids 1." In Biomedical Fluid Dynamics, 212–47. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198812586.003.0009.

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Complex flows are described, including shear thinning, shear thickening, and yield-stress. Mechanisms of changing viscosity in dense suspensions are explored, including the relevance of the lubrication approximation, dilatency, and the spaghetti model of polymers. Liquid crystal alignment is discussed, and model equations are introduced for flows in packed beds. The viscosity of synovial fluid is described, and equations to combine viscous and elastic behaviors are obtained.
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Kumar Prajapat, Naveen, Bhagwan Singh, Manish Saini, Jatin Mahawar, and Sourabh Jain. "Recently Made progress in the Shear Thickening Fluid - A Review." In SCRS Proceedings of International Conference of Undergraduate Students, 107–14. 2023rd ed. Soft Computing Research Society, 2023. http://dx.doi.org/10.52458/978-81-95502-01-1-11.

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This review paper explained in detail about shear thickening fluid and its application in various fields ballistic protection, body armour,shock absorber and damping devices and strengthened the impact energy absorption of aramid fabrics and polymers over the last 4 years. In this paper we explained the different application as per based on different materials. Shear thickening fluid is vital application in ballistic protection where we can save our life. Various types of materials is used as per different characteristics and bullet not enter directly when we wear aramid fabrics and polymer based cloth. This way we can avoid getting more injury.
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Albattat, Rami, and Hussein Hoteit. "Modeling Lost-Circulation into Fractured Formation in Rock Drilling Operations." In Drilling Technology. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.95805.

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Loss of circulation while drilling is a challenging problem that may interrupt drilling operations, reduce efficiency, and increases cost. When a drilled borehole intercepts conductive faults or fractures, lost circulation manifests as a partial or total escape of drilling, workover, or cementing fluids into the surrounding rock formations. Studying drilling fluid loss into a fractured system has been investigated using laboratory experiments, analytical modeling, and numerical simulations. Analytical modeling of fluid flow is a tool that can be quickly deployed to assess lost circulation and perform diagnostics, including leakage rate decline and fracture conductivity. In this chapter, various analytical methods developed to model the flow of non-Newtonian drilling fluid in a fractured medium are discussed. The solution methods are applicable for yield-power-law, including shear-thinning, shear-thickening, and Bingham plastic fluids. Numerical solutions of the Cauchy equation are used to verify the analytical solutions. Type-curves are also described using dimensionless groups. The solution methods are used to estimate the range of fracture conductivity and time-dependent fluid loss rate, and the ultimate total volume of lost fluid. The applicability of the proposed models is demonstrated for several field cases encountering lost circulations.
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Hasib, M. T., L. Ye, and L. Chang. "Vibration control of sandwich structure by integration of shear thickening fluid (STF)." In Recent Advances in Structural Integrity Analysis - Proceedings of the International Congress (APCF/SIF-2014), 534–38. Elsevier, 2014. http://dx.doi.org/10.1533/9780081002254.534.

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Aveyard, Bob. "Rheology of colloids." In Surfactants, 400–424. Oxford University Press, 2019. http://dx.doi.org/10.1093/oso/9780198828600.003.0015.

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Lyophobic colloidal dispersions, aggregated surfactant systems, and polymer solutions, as well as foams and emulsions, can all be deformed by weak external forces; rheology is the study of deformation and flow of materials. Various rheological quantities arising from the response of a material to shear are defined. For liquids the stress, τ‎, applied is related to the rate of deformation, that is, the shear strain rate, γ̇. For Newtonian fluids τ‎ and γ̇ are linearly related and τ‎ / γ̇ is the viscosity, η‎. Other nonlinear relationships correspond to shear thinning and shear thickening fluids and to plastic behaviour in which there is a yield stress. Viscoelastic systems exhibit both viscous and elastic properties; such behaviour is often treated using the simple Maxwell model. Some illustrative experimentally observed rheological behaviour is presented.
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Conference papers on the topic "Shear thickening fluid"

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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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Kabanda Mihigo, Christian, Justin Warren, Mahla Zabet, Thomas E. Lacy, Santanu Kundu, Charles U. Pittman, and Hossein Toghiani. "Effect of Suspended Particle Shapes on Shear Thickening Fluid Behavior." In 57th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virginia: American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-0931.

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Sleiman, Mohamad, Karim Hassoun, and Matthias Liermann. "Hydro-Mechanical Constant-Speed Motion Control Using Shear Thickening Fluid." In ASME/BATH 2017 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/fpmc2017-4207.

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This paper proposes a novel approach to control the velocity of a piston using dilatant fluid. Commonly, a pressure compensated flow control valve is used for this purpose. It produces excellent results but is mechanically complex. A setup is proposed that makes use of the unique properties of dilatant (i.e. shear thickening) non-Newtonian fluids. A simple tube section filled with dilatant material can be used to achieve very low sensitivity of flow rate vs. pressure difference. A numerical study shows how the power law which relates the fluid shear rate to its viscosity results in this low sensitivity of flow to pressure difference. An experimental setup was build to validate the findings using a cheap and commercially available shear thickening fluid. It was found that the dilatant material used does not have a highly pronounced dilatant property and therefore the sensitivity of flow vs. pressure difference was not as low as desired. Nevertheless, the results support the practical applicability of this novel type of velocity control.
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Meng, Bi, and Guangyin Xie. "Study on Preparation and rheological properties of shear thickening fluid." In 2015 4th International Conference on Sustainable Energy and Environmental Engineering. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icseee-15.2016.183.

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Hong, Yifeng, and Donggang Yao. "Formation and Characterization of Co-Continuous Shear Thickening Fluid/Polymer Blends." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-63828.

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By synergistically combining distinct physical and chemical properties of different components, co-continuous polymer blending has become an important route to improve the performance of polymeric materials. Shear thickening fluid is a type of non-Newtonian fluid which has unique shear rate dependence and good damping properties. In this work, the authors combined the shear thickening fluid and a commodity polymer into a single system by forming a co-continuous blend via a melt processing technique. The processing window of such co-continuous blend was determined by referring to the thermal and rheological properties of raw materials and experimentally exploring various blending conditions. An increase of tanδ under dynamic mechanical analyzing testing was observed in the co-continuous blend compared with neat polymer as control, which indicated the enhancement of damping capabilities.
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Rabb, Robert, and Eric Fahrenthold. "Evaluation of Shear Thickening Fluid Kevlar for Large Fragment Containment Applications." In 51st AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
18th AIAA/ASME/AHS Adaptive Structures Conference
12th. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-2649.

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Sun, Pengfei, Jian Li, Lianxin Zhang, Zhongyu Wang, Tao Zhou, and Rui Ke. "Investigation on the performance of fluid jet polishing using shear thickening slurry." In Optical Manufacturing and Testing XII, edited by Rolf Rascher, Ray Williamson, and Dae Wook Kim. SPIE, 2018. http://dx.doi.org/10.1117/12.2321009.

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Lim, Amanda S., Sergey L. Lopatnikov, John W. Gillespie, Albert Co, Gary L. Leal, Ralph H. Colby, and A. Jeffrey Giacomin. "Implementing the Split-Hopkinson Pressure Bar Technique for Shear Thickening Fluid Evaluation." In THE XV INTERNATIONAL CONGRESS ON RHEOLOGY: The Society of Rheology 80th Annual Meeting. AIP, 2008. http://dx.doi.org/10.1063/1.2964810.

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Iyer, S., H. Lee, M. Liger, J. Judy, and R. Candler. "NONLINEAR DAMPING FOR SHOCK PROTECTION OF MEMS DEVICES USING SHEAR THICKENING FLUID." In 2012 Solid-State, Actuators, and Microsystems Workshop. San Diego: Transducer Research Foundation, 2012. http://dx.doi.org/10.31438/trf.hh2012.123.

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Reports on the topic "Shear thickening fluid"

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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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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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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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