The magneto-mechanical coupling of multiphase magnetorheological elastomers
| Author(s) | Barron III, Edward J. | |
| Author(s) | Williams, Ella T. | |
| Author(s) | Lazarus, Nathan | |
| Author(s) | Bartlett, Michael D. | |
| Date Accessioned | 2025-03-12T17:07:34Z | |
| Date Available | 2025-03-12T17:07:34Z | |
| Publication Date | 2025-01-31 | |
| Description | This article was originally published in Journal of Physics: Condensed Matter. The version of record is available at: https://doi.org/10.1088/1361-648X/adac23. © 2025 The Author(s). Published by IOP Publishing Lt. Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 license (https://creativecommons.org/licenses/by/4.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. | |
| Abstract | Magnetorheological elastomers (MREs) are soft magnetic composites that achieve tunable changes in stiffness and damping in the presence of a magnetic field. Rigid particle composite (RC) MREs have been studied for decades for their potential applications to automotive dampers and robotic systems. Recently, magnetic fluid composite (FC) MREs have been developed which utilize magnetic fluids as inclusions to elastomers. An investigation into how inclusion phase affects magneto-mechanical performance may greatly improve MRE design capabilities. Here we experimentally evaluate the impact of solid and liquid magnetic inclusions on MRE properties, construct a simple model that captures the performance of diverse MRE material architectures, and demonstrate the use of the model to create material design maps relating the material structure, zero-field properties, and applied field to the elastic modulus and specific loss. The magneto-mechanical response is evaluated for three material architectures: RC, FC, and hybrid composite MREs that use solid particles, magnetic fluids, and a combination of the two as inclusions respectively. The model is developed through magnetic and mechanical energy principles, which suggests that the phase of the magnetic inclusions impacts the change in energy density during deformation. We show that the magneto-mechanical coupling factor is dependent on the zero-field properties of the composites, which allows for the development of material design maps to inform the fabrication of MREs based on desired properties. | |
| Sponsor | We acknowledge support from the Office of Naval Research Young Investigator Program (YIP) (N000142112699). | |
| Citation | Barron Iii, Edward J, Ella T Williams, Nathan Lazarus, and Michael D Bartlett. “The Magneto-Mechanical Coupling of Multiphase Magnetorheological Elastomers.” Journal of Physics: Condensed Matter 37, no. 13 (March 31, 2025): 135101. https://doi.org/10.1088/1361-648X/adac23. | |
| ISSN | 1361-648X | |
| URL | https://udspace.udel.edu/handle/19716/35902 | |
| Language | en_US | |
| Publisher | Journal of Physics: Condensed Matter | |
| dc.rights | Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| Title | The magneto-mechanical coupling of multiphase magnetorheological elastomers | |
| Type | Article |
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