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Electrorheological fluid (ERF) is a smart material which can transpose from liquid-like state to solid-like state under the action of electric field, along with this process, the physical properties of the material will be changed like apparent viscosity, yield stress and acoustic impendence. In this paper, by means of an ultrasonic shear wave reflectometry method, the transformation laws of the resistive...
The finite-difference time-domain method is used for the numerical analysis of acoustic wave in piezoelectric media. The Gauss equation in piezoelectric materials and the Newton's equations of motion are discretized with centered finite differences in spatial and temporal domain by the FDTD method, and the numerical solutions of the acoustic propagation in the time domain can be obtained directly...
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