Modeling and experimental verification of frequency-, amplitude-, and magneto-dependent viscoelasticity of magnetorheological elastomers

Xin, Fu-Long; Bai, Xian–Xu; Qian, Li-Jun

doi:10.1088/0964-1726/25/10/105002

Cited by 25 publications

(13 citation statements)

References 44 publications

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“…In this experimental study, we check the above hypothesis by examining for the first time the dynamic compression properties of isotropic/anisotropic composite silicon MREs in parallel and series configurations ( Figure 1) under a dynamic compressive strain with varying amplitude (from 0.25% to 1.5%) at zero and at 0.5T magnetic field. Only the magnetic field-strain amplitude coupling effect was considered in this study since the excitation frequency does not influence the MR effect [17], [18].…”

Section: Introductionmentioning

confidence: 99%

Dynamic mechanical properties of isotropic/anisotropic silicon magnetorheological elastomer composites

Sapouna

Xiong

Shenoi

2017

Smart Mater. Struct.

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This study examines the principle of combining isotropic and anisotropic MREs in parallel and series configurations, to adjust the zero-field dynamic stiffness and damping capability of silicon MREs without compromising MR effect. The dynamic mechanical properties can be further tailored by adjusting the isotropic/anisotropic ratio. Damping of parallel configuration isotropic/anisotropic composites can be increased by combining MREs made with iron particles of small (4-6 μm) and large (<220 μm) diameter. In addition, we tested a novel anisotropic elastomer that combines two anisotropic MREs, with their particles aligned in different directions to achieve similar dynamic stiffness, damping and magnetorheological effect in those directions. The magnetorheological effect of the novel anisotropic/anisotropic composite MRE is 10% higher than that of pure anisotropic MRE. The axial, longitudinal and transverse dynamic mechanical properties, magnetorheological effect and the magnetic field-strain amplitude coupling effects were examined under a dynamic compressive strain where the amplitude was varied from 0.25% to 1.5%.

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Section: Introductionmentioning

confidence: 99%

Dynamic mechanical properties of isotropic/anisotropic silicon magnetorheological elastomer composites

Sapouna

Xiong

Shenoi

2017

Smart Mater. Struct.

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“…[236,257,258] The components involved in this combination can be modified to yield other possibilities. [235,251,[259][260][261] For example, the development of a higher-order fractional derivative model can be achieved by combining a fractional Maxwell model with a fractional Kelvin model in parallel where it leads to seven material parameters. [235] It is noted that the fractional Maxwell model was found to be more diverse in describing both MREs' shear storage and shear loss moduli compared with the two-Maxwell model which comprised two-integer-order Maxwell chains.…”

Section: Five Parameters Are Involvedmentioning

confidence: 99%

“…Besides, increasing strain amplitude can result in material softening by destroying the magnetic particle network arrangement. Considering the Payne effect for isotropic MREs, Xin et al [ 251 ] used the Kraus model [ 252 ] and magnetoelastic framework, to develop a viscoelastic model that takes mechanical and magnetic viscoelastic properties into account. The results indicated that in pure mechanical loading, the Kraus model is able to predict mechanical viscoelasticity with acceptable accuracy where both the shear storage and loss moduli increase with increasing excitation frequency.…”

Section: Modeling Of Mresmentioning

confidence: 99%

The Modeling of Magnetorheological Elastomers: A State‐of‐the‐Art Review

Saber

2023

Adv Eng Mater

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The magnetorheological elastomers (MREs) are novel multifunctional materials wherein their viscoelastic properties can be varied instantly under an application of applied magnetic field. Due to their field‐dependent stiffness and damping properties, MREs are widely used in the development and design of MRE‐based adaptive vibration isolators and absorbers and also biomedical engineering. Moreover, MREs due to their inherent magnetostriction effect have enormous potential for the development of soft actuators. The dynamic behavior of MREs is affected by various material parameters (e.g., matrix and particle types, particle concentration, additives) as well as mechanical and magnetic loading parameters (e.g., frequency, amplitude, temperature, magnetic flux density). Understanding and predicting the effect of materials and loading parameters on the response behavior of MREs are of paramount importance for the design of MRE‐based adaptive structures and systems. This review paper mainly aims to provide a comprehensive study of material constitutive models to predict the nonlinear magnetomechanical behavior of MREs. Particular emphasis is paid to physics‐based models including continuum‐ and microstructure‐based models. Moreover, phenomenological models describing the dynamic magnetoviscoelastic behavior of MREs as well as the effect of temperature on the magnetomechanical behavior of such materials are properly addressed.

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“…The most challenging attaches with dynamic behaviors of MR materials is accurately describing the highly nonlinear hysteresis response by the simple model. Bai et al [ 22 ] first proposed the principle of a multi‐variable‐dependent, i.e. frequency, amplitude, and magnetic field, the linear dynamic viscoelastic model for isotropic MR elastomer.…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Temperature on the Dynamic Behaviors of Magnetorheological Gel

Zhang

Sun

et al. 2022

Adv Eng Mater

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Magnetorheological (MR) gel as a novel group of field-induced smart materials, which is composed of micro-or sub-microferromagnetic and carrier polymer soft gel. Its rheological properties, i.e., dynamic viscoelasticity in the oscillatory shear mode can be controlled by applied magnetic flux density. [1,2] Therefore, MR gel has a great potential engineering application, which absorbs significant recognition in the community. [3][4][5] The viscoelastic rheological behaviors under the action of the magnetic field have the characteristics of reversible, significant, and instantaneous, which make MR gel a significant candidate in the engineering applications such as damper, clutch, brake, and valve. [6][7][8][9][10][11] Many of those MR devices are adopted to control vibration or shock absorption by consuming mechanical energy and convert it into the internal energy of MR materials. [12][13][14][15] Such dissipative work of the magnetorheological absorb system will heat the MR device and undoubtedly result in a temperature rise. Therefore, increasing the materials operating temperature will in turn affect the engineering applications of materials, such as the complexity of the control model and control accuracy.Most MR devices such as MR damper works in the dynamic mode. Therefore, the dynamic behaviors controlled by the magnetic field of the MR materials have attracted increasing attention in the community. The most obvious change in the mechanical properties of MR materials under the dynamic shear is viscoelastic behaviors, which are affected by many factors, i.e., magnetic field, composition, temperature, weight of soft magnetic particle, and additives. Li et al. [16] have performed experimental and modeling investigations of viscoelastic characteristics of MR elastomer under sinusoidal excitations. The experimental results show that the MR elastomers behave as linear viscoelastic properties and the modeling study shows that the four-parameter viscoelastic model has a great potential to describe the hysteresis

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Modeling and experimental verification of frequency-, amplitude-, and magneto-dependent viscoelasticity of magnetorheological elastomers

Cited by 25 publications

References 44 publications

Dynamic mechanical properties of isotropic/anisotropic silicon magnetorheological elastomer composites

Dynamic mechanical properties of isotropic/anisotropic silicon magnetorheological elastomer composites

The Modeling of Magnetorheological Elastomers: A State‐of‐the‐Art Review

The Influence of the Temperature on the Dynamic Behaviors of Magnetorheological Gel

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