Investigation of Macroscopic Mechanical Behavior of Magnetorheological Elastomers under Shear Deformation Using Microscale Representative Volume Element Approach

Polymers, Год журнала: 2024, Номер 16(10), С. 1374 - 1374

Опубликована: Май 11, 2024

Magnetorheological elastomers (MREs) are a class of smart materials with rubber-like qualities, demonstrating revertible magnetic field-dependent viscoelastic properties, which makes them an ideal candidate for development the next generation adaptive vibration absorbers. This research study aims at finite element model using microscale representative volume (RVE) approach to predict shear behavior MREs. MREs different elastomeric matrices, including silicone rubber Ecoflex 30 and 50, carbonyl iron particles (CIPs) have been considered as particles. The stress–strain characteristic pure silicon rubbers was evaluated experimentally formulate nonlinear Ogden strain energy function describe hyper-elastic rubbery matrix. obtained mechanical properties matrix inclusions were integrated into COMSOL Multiphysics develop RVE MREs, in 2D 3D configurations, CIP fraction varying from 5% 40%. Periodic boundary condition (PBC) imposed on boundaries, while undergoing deformation subjected flux densities 0–0.4 T. Comparing results modeling isotropic MRE-RVE experimental literature suggests that can be effectively used accurately influence factors type, particles, applied field

Язык: Английский

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Single-Layer Iron Network Microstructure Magnetorheological Elastomer for Transparent Soft Actuator

Опубликована: Янв. 1, 2024

Язык: Английский

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Expanding the Research Capabilities of an Experimental Setup for Testing Magnetoactive Materials

Опубликована: Май 22, 2024

Язык: Английский

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Development and Experimental Study of a Mixed-Mode Vibration Isolator Using Magnetorheological Elastomer

Actuators, Год журнала: 2024, Номер 13(9), С. 352 - 352

Опубликована: Сен. 11, 2024

This paper proposes a mixed-mode (combining shear and squeeze working modes) vibration isolator using magnetorheological elastomer (MRE), which enables the to have larger area better isolation performance by combining modes of MRE. Firstly, based on effect principle MRE, material selection dimensional parameters each component are determined through structural design magnetic circuit calculation. On this basis, field simulation is conducted Maxwell 16.0 software analyze distribution lines induction in area. Simultaneously, equivalent stiffness damping models established explore variation response with external current excitation frequency conditions. Finally, experimental platform built test MRE isolator. The results basically consistent modeling results. showed that when range 16 Hz, effective semi-active control could be achieved applying different inputs. system difficult effectively input at high frequency. These validate rationality feasibility structure, provides good reference for isolators.

Язык: Английский

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Surface instability of a finitely deformed magnetoelastic half-space

International Journal of Non-Linear Mechanics, Год журнала: 2024, Номер unknown, С. 104936 - 104936

Опубликована: Ноя. 1, 2024

Язык: Английский

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