Hysteresis of the viscoelastic properties and the normal force in magnetically and mechanically soft magnetoactive elastomers: Effects of filler composition, strain amplitude and magnetic field

Сорокін, В. В.; Степанов, Г. В.; Shamonin, Mikhail; Monkman, Gareth J.; Khokhlov, Alexei R.; Kramarenko, Elena Yu.

doi:10.1016/j.polymer.2015.08.040

Cited by 122 publications

(116 citation statements)

References 35 publications

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“…Smaller filler particles size and lower magnetic fields result in stronger magnetic networks. Both factors result in the extension of the linear viscoelastic regime to larger strain amplitudes and lead to higher shear storage and loss of moduli values [21,22]. The particle-particle dipolar interaction is explained in the schematic diagram (Figure 16) based on the various vector and angular positions that play the active role in the dipolar moment, contributing to the magneto-rheological effect in the MRE sample in the presence of a magnetic field [23], and also according to the continuum based model proposed in the literature [24][25][26][27].…”

Section: Discussionmentioning

confidence: 99%

The Magneto-Mechanical Behavior of Active Components in Iron-Elastomer Composite

2018

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Abstract:The magneto-rheological effects in iron-elastomer composites (IEC) were investigated by simulation, surface topography, and 3D representation. The simulated behavior of magneto-rheological elastomeric composites in the presence of an external magnetic field was determined and the influence of magnetic intensity on the isotropic distribution of iron filler particles in IECs was investigated. The magnetic intensity distribution was analyzed from the edge of the surface towards the center of the IEC. The samples were characterized for microstructural images after experimental tests using both micro-computed tomography (µCT) and scanning electron microscopy (SEM). The adhesion of filler particles within the matrix of the magneto-rheological elastomer (MRE) composite and their distributions were also investigated. µCT showed the overall 3D representation of IEC and the inner distribution of filler particles revealed the presence of some porosity which may be due to bubbles and voids in the matrix of the composite. Finally, a mechanism was established governing particle-particle interactions on the basis of dipole-dipole interactions.

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Section: Discussionmentioning

confidence: 99%

The Magneto-Mechanical Behavior of Active Components in Iron-Elastomer Composite

2018

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“…Magnetoactive elastomers (MAEs) are polymer composite materials that have magnetically sensitive filler particles embedded in the polymer matrix [1][2][3][4][5][6][7][8][9][10][11][12][13]. The main property that characterizes these smart materials is their high responsiveness to external magnetic fields.…”

Section: Introductionmentioning

confidence: 99%

“…The main property that characterizes these smart materials is their high responsiveness to external magnetic fields. Viscoelastic as well as magnetic properties of MAEs can be controlled externally [1][2][3][4][5]. The most widely used components of the composite are silicone-based soft matrices and micron-sized iron particles [3,4].…”

Section: Introductionmentioning

confidence: 99%

Influence of the geometry on magnetic interactions in a retina fixator based on a magnetoactive elastomer seal

Nadzharyan

Makarova

Казимирова

et al. 2018

J. Phys.: Conf. Ser.

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Abstract.We study the effects the geometric configuration has on magnetic interactions between a magnetoactive elastomer (MAE) sample and various systems of permanent magnets for problems with both flat and curved geometry. MAEs consist of a silicone polymer matrix and iron filler microparticles embedded in it. Permanent magnets are cylindrical neodymium magnets arranged in a line on a flat or curved solid surfaces. We use computer simulations, namely the finite element method, in order to study the interaction force and magnetic pressure in a system with an MAE sample and permanent magnets. The model is based on classical Maxwell magnetostatics and two factors taking into account field dependence of MAE's magnetic properties and inhomogeneities caused by local demagnetization. We calculate magnetic pressure dependences on various geometric parameters of the system, namely, the diameter and the height of permanent magnets, the distance between the magnets and dimensions of MAE samples. This research aims to create a set of guidelines for choosing the geometric configuration of a retina fixator based on MAE seals to be used in eye surgery for retinal detachment treatment.

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“…A temperature controlled Viscotherm VT2, Anton Paar, was also utilized to maintain the desired testing temperature of 25 C. The testing conditions were divided into steady state and oscillatory motions. The rheological measurement system using a parallel-plate is described by the standards ISO 6721-10 and DIN 53019-1 [17].…”

Section: Rheological Measurementmentioning

confidence: 99%

Rheological properties of a reclaimed waste tire rubber through high-pressure high-temperature sintering

Ubaidillah

Yunus

Aziz

et al. 2017

AIP Conference Proceedings

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Hysteresis of the viscoelastic properties and the normal force in magnetically and mechanically soft magnetoactive elastomers: Effects of filler composition, strain amplitude and magnetic field

Cited by 122 publications

References 35 publications

The Magneto-Mechanical Behavior of Active Components in Iron-Elastomer Composite

The Magneto-Mechanical Behavior of Active Components in Iron-Elastomer Composite

Influence of the geometry on magnetic interactions in a retina fixator based on a magnetoactive elastomer seal

Rheological properties of a reclaimed waste tire rubber through high-pressure high-temperature sintering

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