Determination of representative volume element size for a magnetorheological elastomer

Eraslan, Sinan; Gitman, Inna M.; Askes, Harm; Borst, René de

doi:10.1016/j.commatsci.2021.111070

Cited by 7 publications

(3 citation statements)

References 21 publications

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“…Periodic boundary conditions on this RVE are assumed, and the finite element model is solved by using the FFT-based approach. Due to the periodicity assumption and its efficiency in representing the material with its structure while generating the RVE, the size and content of the RVE should be chosen conscientiously. − This approach is computationally more reasonable compared to conventional finite element models; however, it is still more costly than Mori–Tanaka.…”

Section: Materials and Methodsmentioning

confidence: 99%

Halloysite Nanotube-Enhanced Polyacrylonitrile Ultrafiltration Membranes: Fabrication, Characterization, and Performance Evaluation

Acarer,

Pir,

Tüfekci

et al. 2023

ACS Omega

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This research focuses on the production and characterization of pristine polyacrylonitrile (PAN) as well as halloysite nanotube (HNT)-doped PAN ultrafiltration (UF) membranes via the phase inversion technique. Membranes containing 0.1, 0.5, and 1% wt HNT in 16% wt PAN are fabricated, and their chemical compositions are examined using Fourier transform infrared (FTIR) spectroscopy. Scanning electron microscopy (SEM) is utilized to characterize the membranes’ surface and cross-sectional morphologies. Atomic force microscopy (AFM) is employed to assess the roughness of the PAN/HNT membrane. Thermal characterization is conducted using thermal gravimetric analysis (TGA) and differential thermal analysis (DTA), while contact angle and water content measurements reveal the hydrophilic/hydrophobic properties. The pure water flux (PWF) performance of the porous UF water filtration membranes is evaluated at 3 bar, with porosity and mean pore size calculations. The iron (Fe), manganese (Mn), and total organic carbon (TOC) removal efficiencies of PAN/HNT membranes from dam water are examined, and the surfaces of fouled membranes are investigated by using SEM post-treatment. Mechanical characterization encompasses tensile testing, the Mori–Tanaka homogenization approach, and finite element analysis. The findings offer valuable insights into the impact of HNT doping on PAN membrane characteristics and performance, which will inform future membrane development initiatives.

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Section: Materials and Methodsmentioning

confidence: 99%

Halloysite Nanotube-Enhanced Polyacrylonitrile Ultrafiltration Membranes: Fabrication, Characterization, and Performance Evaluation

Acarer,

Pir,

Tüfekci

et al. 2023

ACS Omega

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“…Thus, they are mainly limited to small‐scale problems, in which representative unit cells are investigated for a multiscale modeling technique. [ 52 ] In a continuum‐based approach, the effect of magnetic particles and an elastomeric medium is smeared to develop a representative medium sensitive to magnetic stimuli. The coupled magnetomechanical governing equations are then derived to describe the response of MREs under varied mechanical and magnetic loading conditions.…”

Section: Introductionmentioning

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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“…Magnetorheological elastomer (MRE) is a branch of smart materials that is rapidly evolving and actively studied by other researchers [1]- [4]. In particular, MRE provides an active response by the presence of magnetic field to change the rheological properties of the MRE continuously, rapidly, and reversibly.…”

Section: Introductionmentioning

confidence: 99%

Design and Dynamic Stiffness Evaluation of Magnetorheological Elastomer Bushing using FEMM and Dynamic Testing Machine

Hamid¹,

Mazlan²,

Nordin³

et al. 2023

JMechE

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This research presents a simulation study on electromagnetic behaviour of magnetic flux density distribution in a magnetorheological elastomer (MRE) bushing. The design concept of MRE bushing is based on the design of the bushing used in the conventional car, only the natural rubber is being replaced by the MRE compound. Furthermore, the electromagnetic simulations wereconducted by using Finite Element Method Magnetics (FEMM) software where the main aim is for more magnetic flux density in the MRE, which indicates better performances for MRE bushing in this study. The best configuration of the MRE bushing for this study is using single coil, magnetic material for all parts except for coil bobbin, and the thickness of ring plate of 4 mm, which yield the highest magnetic flux density of 0.205 T. By using this configuration, the dynamic stiffness of this MRE bushing is ranging from 2259.13 N/mm to 2671.06 N/mm with the applied currents of 0.5 A to 2.5 A and frequencies from 1 Hz to 15 Hz. All in all, the optimized configurations improve the performance of MRE bushing remarkably.

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Determination of representative volume element size for a magnetorheological elastomer

Cited by 7 publications

References 21 publications

Halloysite Nanotube-Enhanced Polyacrylonitrile Ultrafiltration Membranes: Fabrication, Characterization, and Performance Evaluation

Halloysite Nanotube-Enhanced Polyacrylonitrile Ultrafiltration Membranes: Fabrication, Characterization, and Performance Evaluation

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

Design and Dynamic Stiffness Evaluation of Magnetorheological Elastomer Bushing using FEMM and Dynamic Testing Machine

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