Modeling of the Field-Induced Plasticity of Soft Magnetic Elastomers

Abstract

A phenomenological model is proposed to describe the plasticity of soft magnetic elastomer composites under an external field. Along with high elasticity, internal dry friction is introduced whose origin is attributed to the dipole-dipole interaction of the embedded particles. Numerical estimates of the model parameters are obtained from comparison with the measurements performed on iron carbonyl dispersions in soft silicon-rubber matrices.

Recent Progress on Magnetorheological Solids: Materials, Fabrication, Testing, and Applications

“…Saturated elastomers, unsaturated elastomers, and thermoset-thermoplastic elastomers are the kinds of matrix commonly utilized as particle carriers. [12,24,39,45,46,48,58,59, However, this mixture faces problems, since the particles cannot easily blend in the silicone matrix. The saturated elastomer matrix seems to have attracted the highest amount of interest among researchers with about 51.5%.…”

“…[204] The phenomenological model which used empirical data as model development base was also interestingly used in modeling area. So far, authors found several articles describe phenomenological model such as Melenev et al; [24] Zrinyi; [18,244] Behrooz et al; [245] Zhou et al; [246] Zhang and Wang; [247] Dorfmann and Brigadnov, [248] and Kaleta et al [249] Many types of theoretical approach have been proposed mathematically by considering both physical parameters of MREs and experimental data. Intelligent approach, e.g., neural network, fuzzy logic, genetic algorithm, ant colony and so on, which results black box model is seems potential to be used as MREs modeling, however, this method does not found in previous literatures.…”

“…Therefore, stimulation by magnetic fields is appropriate in situations where wiring to electrodes, light irradiation, and other means are not possible. Other researchers have termed such materials as ferrogels, [16][17][18] magneto-active polymers (MAPs), [19] elastomer-ferromagnetic composites, [20] magnetorheological visco-elastomers (MRVEs), [21] soft magnetic elastomers (SMEs), [22][23][24] MR gels, [25][26][27][28] ferro-magnetic elastomer composites, [20] and magnet filler-polymer composites or Magpols. According to basic terminology, such a material can be classified as a smart composite.…”

Magneto-induced large deformation and high-damping performance of a magnetorheological plastomer

“…Considering the initial shear modulus G 0 = 15.0 kPa) and the viscosity η = 107.8 kPa • s of the MRP-60 under no external magnetic field, one can determine that the external magnetic field can substantially affect the property of an MRP. Similar works on the modeling of the field-induced plasticity and magneto-dipolar striction of soft magnetic elastomers were well done [30][31][32].…”

Field‐induced plasticity of magneto‐sensitive elastomers in context with soft robotic gripper applications

“…The potential use of the field-induced plasticity effect of magneto-sensitive elastomers (MSE) in context with robotic applications is a promising new research topic [1]. Due to this effect, the deformed shape of proper designed MSE materials remains preserved after a mechanical load, if a large static uniform magnetic field is present [2,3]. The initial shape can be restored, as soon as the magnetic field is switched off.…”