Dynamic mechanical properties of an electrorheological fluid under large-amplitude oscillatory shear strain

Author:

Mohammadi Farough1,Sedaghati Ramin1

Affiliation:

1. Department of Mechanical and Industrial Engineering, Concordia University, Montreal, QC, Canada

Abstract

In the present study, the shear stress response and the dynamic mechanical properties of an electrorheological fluid are experimentally investigated for small/large shear strain amplitude at moderate range of frequencies and different field intensities. A new efficient constitutive model has also been proposed, which can accurately predict the measured experimental data. Compared with the Fourier transformation rheology, the proposed model requires less number of parameters in order to predict the stress response and the mechanical properties, including storage and loss moduli for different strain amplitudes, frequencies, and field intensities. This leads to simplify the parameter identification in order to predict the material response using the optimization methods.

Publisher

SAGE Publications

Subject

Mechanical Engineering,General Materials Science

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