An effective permeability model to predict field-dependent modulus of Magnetorheological Elastomers
Abstract
Magnetorheological Elastomers (MREs) are composites where magnetic particles are suspended in a nonmagnetic solid or gel-like matrix. Solid MREs are shown to have a controllable, field-dependent shear modulus. Up to now, most of conventional MREs models are based on the magnetic dipole interactions between two adjacent particles of the chain. These models can express the field-dependent properties of MREs with simple chain-like structure. In this paper, a effective permeability model is proposed to predict the field-induced modulus of MREs. This model is based on effective permeability rule instead of dipole interaction rule, which take into account the particle's saturation and can predict the mechanical performances of MREs with complex structure and components. A novel MREs is also designed to improve the magnetic energy density and field-dependent performance by using the iron particles with magnetizable soft shell.
- Publication:
-
Nonlinear Science and Complexity - Proceedings of the Conference. Edited by LUO ALBERT C J ET AL. Published by World Scientific Publishing Co. Pte. Ltd
- Pub Date:
- 2007
- DOI:
- 10.1142/9789812772428_0047
- Bibcode:
- 2007nsc..conf..412Z