Nonlinear ER effects in an ac applied field

Details Nonlinear ER effects in an ac applied field Nonlinear ER effects in an ac applied field

2001-02-04

arxiv.org/abs/cond-mat/0102063v1

Phys. Rev. E 63, 052501 (2001).

Physics

Condensed Matter

Soft Condensed Matter

Presented at Conference on Computational Physics (CCP2000), held at Gold Coast, Australia from 3-8, December 2000

Scientific paper

10.1103/PhysRevE.63.052501

The electric field used in most electrorheological (ER) experiments is usually quite high, and nonlinear ER effects have been theoretically predicted and experimentally measured recently. A direct method of measuring the nonlinear ER effects is to examine the frequency dependence of the same effects. For a sinusoidal applied field, we calculate the ac response which generally includes higher harmonics. In is work, we develop a multiple image formula, and calculate the total dipole moments of a pair of dielectric spheres, embedded in a nonlinear host. The higher harmonics due to the nonlinearity are calculated systematically.

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