Ground state of a polydisperse electrorheological solid: Beyond the dipole approximation

2002/11/25 by H. Sun, Hong Sun, K. W. Yu
Engineering · Physics and Astronomy · #Seismic Performance and Analysis #Vibration Control and Rheological Fluids #cond-mat.mtrl-sci #cond-mat.soft

paper · pdf · doi:10.1103/physreve.67.011506

published as Phys. Rev. E 67, 011506 (2003) · Accepted for publications by Phys. Rev. E

arxiv created 2002/11/25 · openalex publication_date 2003/01/28 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The ground state of an electrorheological (ER) fluid has been studied based on our recently proposed dipole-induced dipole (DID) model. We obtained an analytical expression of the interaction between chains of particles which are of the same or different dielectric constants. The effects of dielectric constants on the structure formation in monodisperse and polydisperse electrorheological fluids are studied in a wide range of dielectric contrasts between the particles and the base fluid. Our results showed that the established body-centered tetragonal ground state in monodisperse ER fluids may become unstable due to a polydispersity in the particle dielectric constants. While our results agree with that of the fully multipole theory, the DID model is much simpler, which offers a basis for computer simulations in polydisperse ER fluids.

Citations

• Computer simulations of electrorheological fluids in the dipole-induced dipole model
• Classical Electrodynamics

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• Computer simulations of polydisperse ER fluids in DID model
• Computer simulations of electrorheological fluids in the dipole-induced dipole model
• Interparticle force in polydisperse electrorheological fluids: Beyond the dipole approximation
• Many-body dipole-induced dipole model for electrorheological fluids
• Nonlinear alternating current responses of electrorheological solids