We study the formation of columnar structures of uniaxial dipoles in an external magnetic field both experimentally and theoretically. By applying an external magnetic field parallel to a thin layer of a magnetorheological fluid, we manipulate a single initial cluster of suspended colloidal particles. We find that the cluster breaks up into columns that have approximately uniform widths and int...

Abstract Magnetorheological materials are a class of “smart materials”, where mechanical material properties can be tuned by the application externally applied fields. To accomplish magneto-sensitive quality, magnetic particlesare distributed in host matrix. In last year’s interest gained based on solid matrices. contrast to fluid systems, within matrix, particles fixed material. This enables a...

This paper puts forth an approximate solution for the effective free-energy function describing the homogenized (or macroscopic) magnetoelastic response of magnetorheological elastomers comprised of non-Gaussian rubbers filled with isotropic suspensions of either iron or ferrofluid particles. The solution is general in that it applies to N = 2 and 3 space dimensions and any arbitrary (non-perco...