Dynamic response of shear thickening fluid reinforced with SiC nanowires under high strain rates
نویسندگان
چکیده
منابع مشابه
Shear-Thickening Fluid
Shear-Thickening Fluids (STFs) are a special Non-Newtonian Fluid that act like a solid when they experience a force. A simple example of this is a mixture of cornstarch and water. In this experiment, I text this mixture’s STF properties by using a ball drop to simulate an impact. By varying the ball drop height (and thus the force upon impact), and observing the bounce height, I determined wher...
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The mechanical behavior and microstructure of pure iron subjected to dominant shear loading has been characterized over a wide range of train rates. Pure iron is found to be highly strain-rate sensitive. Iron exhibits marked strain softening at ε̇ ≈ 8000 s−1 − σ ≈ 850 MPa that is nexpected for the annealed material, as characterized by TEM, but is identical to that of iron preshocked at 40 GPa [...
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By introducing a state variable, we construct a phenomenological fluid dynamical model of a dilatant fluid, i.e., a dense mixture of fluid and granules that shows severe shear thickening. We demonstrate that the fluid shows shear thickening oscillation, namely, the fluid flow oscillates owning to the coupling between the fluid dynamics and the internal dynamics of state. We also demonstrate tha...
متن کاملShear-Thickening Response of Fumed Silica Suspensions under Steady and Oscillatory Shear
Suspensions of fumed silica in polypropylene glycol exhibit shear-thickening under steady shear and "strain-thickening" under oscillatory shear. Strain-thickening refers to a sharp increase in the complex viscosity eta* observed at critical combinations of strain-amplitude and frequency. Two regimes of strain-thickening behavior have been found: The first occurs at high critical strains and low...
متن کاملDynamic jamming point for shear thickening suspensions.
We report on rheometry measurements to characterize the critical behavior in two model shear thickening suspensions: cornstarch in water and glass spheres in oil. The slope of the shear thickening part of the viscosity curve is found to increase dramatically with packing fraction and diverge at a critical packing fraction phi(c). The magnitude of the viscosity and the yield stress are also foun...
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ژورنال
عنوان ژورنال: Applied Physics Letters
سال: 2017
ISSN: 0003-6951,1077-3118
DOI: 10.1063/1.4994066