Microstructure-based modeling of magneto-rheological elastomers

Yi Han; Zihou Zhang; LeAnn E. Faidley; Wei Hong

doi:10.1117/12.925492

28 March 2012 Microstructure-based modeling of magneto-rheological elastomers

Yi Han, Zihou Zhang, LeAnn E. Faidley, Wei Hong

Proceedings Volume 8342, Behavior and Mechanics of Multifunctional Materials and Composites 2012; 83421B (2012) https://doi.org/10.1117/12.925492
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

Filled with iron particles, polymers can be made responsive to magnetic fields. Specifically, the elastomers that change stiffness in response to a magnetic field are usually called magneto-rheological elastomers (MREs). Anisotropic MREs, in which the particles are aligned during curing and form chain-like structures, exhibit a more significant magneto-rheological (MR) effect, i.e. the field-induced stiffening. In this paper, we first develop a constitutive model for the nonlinear behavior of deformable solids under magnetic field. Based on the filler-substrate microstructure of MREs, we further implement the theory into a finite element method. The magneto-mechanical response of a representative unit cell of MRE is studied using the finite element method. The MR effect in both the shear modulus and the tensile modulus of an MRE is studied. In addition, we consider the viscoelasticity of the polymer matrix and study its effect on the properties of an MRE. Using the viscoelastic model for MRE, we also investigate the frequency dependence of the MR effect.

Citation Download Citation

Yi Han, Zihou Zhang, LeAnn E. Faidley, and Wei Hong "Microstructure-based modeling of magneto-rheological elastomers", Proc. SPIE 8342, Behavior and Mechanics of Multifunctional Materials and Composites 2012, 83421B (28 March 2012); https://doi.org/10.1117/12.925492

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available