A microstructural investigation of the nonlinear response of electrorheological suspensions

Evaluation of a transient network model for telechelic associative polymers

“…An overshoot in G is often observed in complex fluids [34], and is predicted by some models as well. In dynamic simulations of electrorheological suspensions [35,36], careful investigation of the microstructure showed that it was related to a slight intra-cluster rearrangement followed by a reformation of clusters. This reformation of clusters in electrorheological fluids has a similar effect as the formation and destruction of temporal intermolecular networks in other complex fluid systems where LAOS behaviour of this type frequently occurs [37].…”

Effect of friction between particles in the dynamic response of model magnetic structures

“…The microscopic model used here has been extensively discussed previously [7,11,18]. We outline here the main features required for the present work.…”

“…However, the loss modulus is inversely proportional to the pulsation at high excitation frequency. Klingenberg and coworkers [6,7] used a computational simulation to investigate the oscillatory regime, and suggested a time-field strength superposition principle. Numerical results were found to be in good agreement with experiments using a 20 wt% suspension of alumina particles in poly(dimethylsiloxane).…”

Non-linear viscoelastic response of magnetic fiber suspensions in oscillatory shear

“…A number of works has been devoted to the LAOS response of conventional ER fluids and MR fluids, both composed of spherical particles [24][25][26][27][28][29][30][31][32]. The electrorheological and magnetorheological effects are essentially similar in nature, so both ER and MR fluids show similar behavior in oscillatory shear.…”