An effective permeability model to predict field-dependent modulus of magnetorheological elastomers
نویسندگان
چکیده
منابع مشابه
Magnetorheological elastomers – possibilities and limitations
The mechanical properties of magnetorheological (MR) materials can be changed continuously, rapidly and reversibly by an applied magnetic field. Solid MR materials consist of magnetically polarisable particles, generally iron, in an elastomer matrix. The required iron concentration is high, about 30% by volume. Problems and solutions will be discussed related to MR-technology. Finally long-term...
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A new magnetorheological elastomer composite (MRE) was developed with a resistance which is strongly sensitive both to temperature and pressure. The electrical resistance of this MRE was investigated versus pressure and temperature. The resistance of the composite was recorded versus pressure for seven different values of the temperature. The mechanism of electrical conduction was modeled and a...
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Iron particle coating can improve the behavior of magnetorheological elastomers (MREs) by inhibiting iron particle rusting; however, such a process can change physical properties of MREs such as oxidation resistance, shear modulus, and stiffness change due to an applied magnetic field. In this study, MRE samples are fabricated with regular and polymerized iron particles. To investigate the poss...
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The aim of this work is to present new variational-based computational modeling approaches for selected materials that have coupled magnetic and mechanical properties. In order to solve the magnetomechanically coupled boundary value problems, we employ the finite element method and also discuss certain aspects that are peculiar to magnetomechanical problems such as the unity constraint on the m...
متن کاملSupplementary Information: Two-field stability control of marginally stable magnetorheological elastomers
We give more details on the experimental procedure and we derive in detail the first and second variations of the potential energy used to carry out the numerical simulations. The numerical part is presented in a comprehensive way and allows direct implementation in standard (commercial and non-commercial) finite element codes. We also investigate in depth the effect of friction on the lateral ...
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ژورنال
عنوان ژورنال: Communications in Nonlinear Science and Numerical Simulation
سال: 2008
ISSN: 1007-5704
DOI: 10.1016/j.cnsns.2007.03.029