Dot-patterned hybrid magnetorheological elastomer developed by 3D printing

Bastola, Anil K.; Paudel, Milan; Li, L.

doi:10.1016/j.jmmm.2019.165825

Cited by 35 publications

(23 citation statements)

References 25 publications

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“…In particular, magnetorheological composites (MCs) have attracted an intense research interest, owing to their potential applications in a large number of multi-functional devices, including energy dissipation [ 10 ], vibration absorbing [ 11 ], muscle-like actuators [ 12 ], or sensors [ 13 , 14 , 15 ]. Recently, the application of MCs as sensors and transducers has become a hot research topic [ 16 , 17 , 18 , 19 ] due to their high socio-economic impact and the rapid development of various fabrication methods, including three-dimensional (3D) printing [ 20 , 21 , 22 ] or magnetorheological drawing lithography [ 23 ]. An excellent review in which some perspectives in the development of wearable polymer-based sensors are described has recently been published in Ref.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

2020

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We present a simple, low-cost, and environmental-friendly method for the fabrication of hybrid magnetorheological composites (hMCs) based on cotton fibers soaked with a mixture of silicone oil (SO), carbonyl iron (CI) microparticles, and iron oxide microfibers (μF). The obtained hMCs, with various ratios (Φ) of SO and μF, are used as dielectric materials for manufacturing electrical devices. The equivalent electrical capacitance and resistance are investigated in the presence of an external magnetic field, with flux density B. Based on the recorded data, we obtain the variation of the relative dielectric constant (ϵr′), and electrical conductivity (σ), with Φ, and B. We show that, by increasing Φ, the distance between CI magnetic dipoles increases, and this leads to significant changes in the behaviour of ϵr′ and σ in a magnetic field. The results are explained by developing a theoretical model that is based on the dipolar approximation. They indicate that the obtained hMCs can be used in the fabrication of magneto-active fibers for fabrication of electric/magnetic field sensors and transducers.

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Section: Introductionmentioning

confidence: 99%

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

2020

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“…The details of the 3D printing process used to develop hybrid MREs can be found in the previous work (Bastola et al, 2018a). In this article, we report the extension of the previously reported works (Bastola et al, 2017a(Bastola et al, , 2018a(Bastola et al, , 2020; first, the printing of five patterns of MR fluid filaments within the elastomer matrix has been presented. Second, the dynamic characterization of 3D-printed hybrid MREs has been performed, which has not been reported previously.…”

Section: Introductionmentioning

confidence: 88%

Line-patterned hybrid magnetorheological elastomer developed by 3D printing

Bastola

Paudel

2019

Journal of Intelligent Material Systems and Structures

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This article presents the development of line-patterned magnetorheological elastomers via 3D printing and their magnetorheological characterization. Herein, we consider five different patterns of magnetorheological fluid filaments that are printed and encapsulated within the elastomer matrix. The 3D-printed magnetorheological elastomers could represent the conventional isotropic and anisotropic magnetorheological elastomers. First, the effect of patterning the magnetorheological fluid filaments and the effect of change in the direction of the magnetic field is studied for all five patterns. Thereafter, the dynamic properties of 3D-printed magnetorheological elastomers under uniaxial deformation are presented. Magnetorheological effect shown by 3D-printed magnetorheological elastomers was found to be depended on the printed patterns as well as the direction of the applied magnetic field. This result showed that the 3D printing method has the potential to produce anisotropic magnetorheological elastomers or unique configuration of magnetic particles within the elastomer matrix. The dynamic testing showed that the storage modulus of 3D-printed magnetorheological elastomers is increased with increasing frequency and decreased with increasing strain amplitude, which signifies that the 3D-printed hybrid magnetorheological elastomers are also viscoelastic materials and the properties are magnetic field dependent as that of current magnetorheological elastomers.

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“…[ 33,97,101,102 ] Recently, some works have been published in which the MREs have been developed by additive manufacturing methods. [ 103–105 ] In these works, a multimaterial 3D printer was used, being it equipped with a UV unit to allow for the curing of the elastomeric material. The desired patterns were generated by using a Bio‐CAD 3D design software.…”

Section: Materials Processing and Functional Responsementioning

confidence: 99%

“…After that, a second cartridge filled with MR fluid printed the desired pattern, which can be continuous [ 103 ] or discontinuous. [ 104 ] Then, another layer of elastomer was deposited and cured, encapsulating the magnetic fluid in between layers. The process was repeated until the desired thickness was achieved.…”

Section: Materials Processing and Functional Responsementioning

confidence: 99%

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Magnetorheological Elastomer‐Based Materials and Devices: State of the Art and Future Perspectives

et al. 2021

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Magnetorheological elastomers based on the combination of a polymeric matrix with magnetic fillers allow the possibility of controlling their mechanical properties when an external magnetic field is applied. This so‐called magnetorheological effect can be exploited for a variety of applications. Herein, a comprehensive outlook at the state of the art is provided, in terms of the materials, effects, and applications. The physical effects that result in the magnetorheological effect are described, both from a micro and phenomenological points of view. Then, the possible combinations of different polymeric matrices and magnetic fillers, along with other additives, are presented, allowing to tune the mechanical properties, mainly dependent on the polymer matrix, and the magnetic field response, which is related to the magnetic filler. Finally, representative applications of magnetorheological elastomers are presented. This review represents an up‐to‐date state‐of‐the‐art in the field of magnetorheological elastomers as a ground to highlight the main achievements and point the specific needs to improve their response and applicability by further tuning materials and configurations.

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Dot-patterned hybrid magnetorheological elastomer developed by 3D printing

Cited by 35 publications

References 25 publications

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

Hybrid Magnetorheological Composites for Electric and Magnetic Field Sensors and Transducers

Line-patterned hybrid magnetorheological elastomer developed by 3D printing

Magnetorheological Elastomer‐Based Materials and Devices: State of the Art and Future Perspectives

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