Magnetorheology in viscoplastic media

Rankin, P.; Horvath, Andrew T.; Klingenberg, Daniel J.

doi:10.1007/s003970050198

Cited by 221 publications

(127 citation statements)

References 9 publications

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“…A preliminary study using grease as the matrix has shown promising results. 40) Regarding the wall conditions, there is the possibility of enhancing the performance of the MRS through the use of suitably profiled wall surfaces (e.g. to provide anchor points for the aggregates).…”

Section: Discussionmentioning

confidence: 99%

Magneto-rheological Suspensions - Physical Mechanisms and Modeling -

See¹

2003

J. Soc. Rheol., Jpn

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A magneto-rheological suspension (MRS) is a particulate suspension which shows a dramatic increase in flow resistance upon application of an external magnetic field. The fundamental physical process is believed to be that the field induces polarization of each particle with respect to the carrier material, and the resulting interparticle forces cause aggregates of particles to form in the field direction. While recent years have witnessed the appearance of several applications using these tunable flow properties, optimal use of MRS technology is still hindered by our incomplete understanding of the underlying mechanisms. This paper surveys recent developments which have improved our understanding of several of the key issues governing the rheological behavior of MRS. In particular, experiments using small strain rheometry and oscillatory shear flow have given insights into the viscoelastic nature of the aggregates before they yield. A recent advance in modeling has been the two fluid continuum approach, which may help the establishment of a more general constitutive framework for MRS.

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Section: Discussionmentioning

confidence: 99%

Magneto-rheological Suspensions - Physical Mechanisms and Modeling -

See¹

2003

J. Soc. Rheol., Jpn

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“…However, when the particles settled down, the fieldinduced particle chains formed incompletely at best in which MR response was critically degraded. Later, in order to prevent further sedimentation, new compositions of MRF with consideration on viscoplastic [11] and viscoelastic continuous phases [12] were formulated, so that the stability could be improved immensely. In addition, a composite MRF has been prepared by Pan et al [13] with a combination of iron particles powder, gelatine and carrier fluids.…”

Section: Composition Of Mrfmentioning

confidence: 99%

Optimal Design Methodology of Magnetorheological Fluid Based Mechanisms

Nguyen¹,

Choi²

2012

Smart Actuation and Sensing Systems - Recent Advances and Future Challenges

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“…In order to reduce particle aggregation and settling, different procedures have been proposed: (1) adding thixotropic agents (ex. Carbon fibers, silica nanoparticles) (Bossis, Volkova et al 2003;De Vicente, López-López et al 2003); adding surfactants(ex Oleic or stearic acid) (Phulé and Ginder 1999); (3) adding magnetic nanoparticles López-López, de Vicente et al 2005); (4) the use of viscoplastic media as a continuous phase (Rankin, Horvath et al 1999) and (5) water-in-oil emulsions as carrier liquids . Glycerol and surfactants are used in water based fluid as stabilizers.…”

Section: Magnetorheological Fluidmentioning

confidence: 99%