A magnetic field- and frequency-dependent dynamic shear modulus model for isotropic silicone rubber-based magnetorheological elastomers

Theoretical Modeling of Magnetoactive Elastomers on Different Scales: A State-of-the-Art Review

“…The information about MAE magnetization curves must then be obtained using some other experimental or theoretical research methods. In particular, in [ 142 ] the magnetization model of MAEs was combined with magnetic dipole theory and quantitative description of frequency-dependent shear modulus in various magnetic fields, as a result, the authors proposed a generalized Maxwell model connected in parallel with a magneto-induced modulus model which was able to describe frequency and magnetic field dependencies of the dynamic shear modulus of isotropic MAEs based on silicone rubber filled with carbonyl iron microparticles. The parameters of the magnetization model were obtained from fitting experimental magnetization curves.…”

Research on Properties of Dopamine and Silicon Carbon Black Modified Basalt Fiber Reinforced Magnetorheological Elastomer

“…Stepanov et al [ 26 ] investigated the viscoelastic behavior of isotropic MREs in an external homogeneous magnetic field and found a pseudo-plastic effect and a hundred-fold increase in the shear loss modulus of the MREs at small deformations. Qiao et al [ 27 ] conducted experimental and simulation studies on the dynamic shear storage modulus and loss modulus of isotropic MREs, and proposed a new magneto-induced shear modulus model. Khimi et al [ 28 ] compared the anisotropic MREs solidified under different magnetic fields, and pointed out that the magnetic particle chain becomes longer as the magnetic field strength increases during the solidification process.…”

Physical Mechanisms of Magnetic Field Effects on the Dielectric Function of Hybrid Magnetorheological Suspensions

“…These materials, together with magnetorheological suspensions (MRSs) and magnetorheological elastomers (MREs), belong to the class of active magnetic materials. Since the matrix is a liquid for MRSs [ 1 , 2 , 3 , 4 , 5 , 6 ] and silicone rubber for MREs, embedded with ferri-/ferromagnetic microparticles in both cases [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ], the matrix for hMRSs is a fabric of polymeric fibers doped with MRSs [ 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. The term “hybrid” refers to magnetically active materials made up of a fabric of polymeric fibers doped with MRSs [ 21 , 22 , 23 , 24 , 25 ].…”

“…When applying a magnetic field, the magnetizable phase from MRSs, MREs, and hMRSs orients along the magnetic field in aggregates with chain or column shapes. The strength of the chains depends on the magnetic properties of the magnetizable phase and the intensity of the external magnetic field [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ].…”

“…For MRSs, this delay depends on the quantity of the magnetizable phase, the viscosity of the liquid matrix, and the additives used [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. For MREs, the delay in stabilization of the response function to magnetic excitation depends on the type of silicone rubber and the polymerization speed of the mixture in the presence or absence of the external magnetic field [ 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 ]. The response to the external excitation is shorter for hMRSs than MRSs and MREs and depends on the textile fabric fibers and the volumetric fraction of the magnetizable phase, as we previously reported [ 21 , 22 , 23 , 24 , 25 ].…”