Results 121 to 130 of about 1,277 (177)

Magnetorheology of dimorphic magnetorheological fluids based on nanofibers

Smart Materials and Structures, 2014
We report a systematic experimental investigation on the use of nanofibers to enhance the magnetorheological (MR) effect in conventional (microsphere-based) MR fluids formulated in polyalphaolefin oil/1-octanol. Two kinds of nanofibers are employed that have very similar morphology but very different magnetic properties.
Antonio J F Bombard, Flavia R Gonçalves, Jose R Morillas, Juan de Vicente   +3 more
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Structures of a Magnetorheological Fluid

Electro-Rheological Fluids and Magneto-Rheological Suspensions, 2000
Molecular dynamics simulations were carried out to find the underlying structures of a Magnetorheological (MR) fluid while taking into account dipolar forces, viscous drag, and the Brownian force. Three different structures were found: the bct lattice, chains, and a liquid state.
G. L. Gulley, R. Tao
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Magnetorheological fluids: a review

Soft Matter, 2011
Magnetorheological (MR) materials are a kind of smart materials whose mechanical properties can be altered in a controlled fashion by an external magnetic field. They traditionally include fluids, elastomers and foams. In this review paper we revisit the most outstanding advances on the rheological performance of MR fluids.
Juan de Vicente, Daniel J. Klingenberg, Roque Hidalgo-Alvarez   +2 more
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Thermogelling magnetorheological fluids

Smart Materials and Structures, 2013
A novel approach is proposed for the formulation of kinetically stable magnetorheological (MR) fluids exhibiting an MR effect. Thermoresponsive carrier fluids are used which develop a sol–gel transition on increasing the temperature. Turbidity measurements, multiwave rheology and steady shear flow tests are carried out on model conventional MR fluids ...
Keshvad Shahrivar, Juan de Vicente
openaire   +1 more source

Rheology of a Magnetorheological Fluid

Journal of Intelligent Material Systems and Structures, 1996
We report on experimental investigations of the rheological behavior of aqueous magnetic suspensions. The suspended particles are monodisperse colloidal polystyrene spheres which contain magnetic Fe 2 0 3 -grains.
D. W. Felt, M. Hagenbuchle, J. Liu, J. Richard   +3 more
openaire   +1 more source

Behavior of Magnetorheological Fluids

MRS Bulletin, 1998
In the absence of an applied magnetic field, magnetorheological (MR) fluids typically behave as nearly ideal Newtonian liquids. The application of a magnetic field induces magnetic dipole and multipole moments on each particle. The anisotropic magnetic forces between pairs of particles promote the head-to-tail alignment of the moments and draws the ...
openaire   +1 more source

Compressible magnetorheological fluids

Journal of Applied Polymer Science, 2009
AbstractA novel compressible magnetorheological fluid (CMRF) has been synthesized with additives that provide compressibility to the fluid. This CMRF has been designed to provide an elastic component to a magnetorheological fluid (MRF) that can be used as a springless damper. CMRF provides controllable compressibility to the MRF. The controllability of
Alan Fuchs, Abu Rashid, Yanming Liu, Barkan Kavlicoglu, Huseyin Sahin, Faramarz Gordaninejad   +5 more
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MAGNETORHEOLOGICAL FLUIDS AND THEIR PROPERTIES

International Journal of Modern Physics B, 2005
Magnetorheological (MR) fluids are materials that respond to an applied magnetic field with a change in their rheological properties. Upon application of a magnetic field, MR fluids have a variable yield strength. Altering the strength of the applied magnetic field will control the yield stress of these fluids.
J. M. HE, J. HUANG
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Flow of Magnetorheological Fluids

Journal of Intelligent Material Systems and Structures, 2001
For efficiently describing the flow of magnetorheological fluids (MRFs), a feasible model based on the Bingham equation is presented. It allows the determination of rheological parameters from parameters attained with a measuring equipment working in the flow mode.
U. Lange, L. Richter, L. Zipser
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Magnetorheologic fluids for actuators

Sensors and Actuators A: Physical, 2001
Abstract Magnetorheologic fluids (MRF) are suspensions consisting of a synthetic oil and very small soft-magnetic particles. In a magnetic field, the particles are locked to long chains. In consequence of it, the viscosity and the flow behaviour of the fluid are considerably changed.
L. Zipser, L. Richter, U. Lange
openaire   +1 more source