Topic
Rheometer
About: Rheometer is a research topic. Over the lifetime, 5759 publications have been published within this topic receiving 125849 citations.
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TL;DR: In this paper, an ultrasound-based Flow Viz industrial rheometer was used to measure the yield stress of cement grout and provide a detailed visualization of the velocity profile of the grout flow.
42 citations
TL;DR: Azad Trivedi Viscoelastic Model (AT-VEM) as mentioned in this paper was proposed to predict the apparent viscosity in the shear thickening region using the extensional parameters measured by capillary breakup extensional rheometer (CaBER) through the combination of Upper Convected Maxwell (UCM), finite extensible nonlinear elasticity (FENE) and power law theories.
41 citations
TL;DR: In this paper, two different water-washed municipal solid waste (MSW) incinerator fly ashes were investigated using a parallel plate rheometer and two modified Reynolds numbers were proposed and discussed.
41 citations
TL;DR: The dependence of the normal stress on the shear rate and magnetic field strength in magnetorheological (MR) fluids has been studied experimentally in this paper, showing that normal stress increases considerably with an increase in the rate of shear flow and increases with the strength of the applied magnetic field.
Abstract: The dependence of the normal stress on the shear rate and magnetic field strength in the shear flow of magnetorheological (MR) fluids has been studied experimentally. An obvious normal stress could be observed when the applied magnetic field was higher than a critical value. The normal stress increases considerably with increase of the shear rate and magnetic field, and decreases suddenly and significantly upon the onset of shear thickening in MR fluids. The ratio of shear stress to normal stress, an analogue of the friction coefficient, increases with increase of the shear rate, but decreases with increase of the applied magnetic field. Along with the shear stress, the normal stress in MR fluids could provide a more comprehensive understanding of the MR effect, and the evolution of the particle structure in shear flow, and may have important implications for preparing high performance magnetostrictive elastomers with high force output along the magnetic field direction.
41 citations
TL;DR: In this paper, a compression rheometer was proposed to characterize the rheology and compressibility of preimpregnated polymer-matrix composites. But the proposed method did not take into account a priori assumptions on both the Rheology of the composite and the form of the friction law.
Abstract: Compression moulded preimpregnated polymer-matrix composites are often porous materials. Rheological studies usually neglect their subsequent compressible complex flow behaviour, together with mouldcomposite friction effects. Therefore the proposed method, including a newly developed compression rheometer, allows the rheology and the compressibility of such materials together with the mould–composite friction phenomena to be characterised without taking into account a priori assumptions on both the rheology of the composite and the form of the friction law. Its validity and usefulness for improving the interpretation of rheological results is demonstrated using a modelling plastic paste and an industrial Sheet Moulding Compound (SMC) during lubricated (or not) compression tests performed at low or high temperatures.
41 citations