Fatigue Properties of Smart Electrorheological Materials

Seung Bok Choi; Kyung Su Kim

doi:10.4028/www.scientific.net/KEM.297-300.1172

Paper Titles

Thermomechanical Fatigue Behavior of the Ferritic Stainless Steel
p.1146

Plasticity-Induced Martensitic Phase Transformation in Fatigue of Unnotched SUS304 Plates
p.1152

An Initial Small Fatigue Crack by Compressive Stress
p.1158

Influence of Microstructure on Small Crack Behavior
p.1165

Fatigue Properties of Smart Electrorheological Materials
p.1172

Microstructure and Mechanical Properties of A 1.4%C Ultra High Carbon Steel
p.1178

Study on Temper Embrittlement of Phosphorus in Steel 12Cr1MoV
p.1183

In Situ Observation of Fracture of Aluminium Foam Using Synchrotron X-Ray Microtomography
p.1189

Three-Dimensional Material Failure Process Analysis
p.1196

HomeKey Engineering MaterialsKey Engineering Materials Vols. 297-300Fatigue Properties of Smart Electrorheological...

Fatigue Properties of Smart Electrorheological Materials

Abstract:

In this study, both mechanical and electrical fatigue properties of electrorheological (ER) materials whose global characteristics can be controlled by an external electric field are experimentally evaluated. In order to investigate the mechanical fatigue property, a linear reciprocating apparatus is devised and operated by the hydraulic unit. Two important characteristics of methylcellulose based ER material: the field-dependent yield stress and current density are investigated as a function of the operating cycle. The electrical fatigue property is investigated by applying high voltage to the ER material domain through the electrode gap. The voltage is imposed in on-off manner for the specific cycles by changing the field intensity. The yield stress and current density of the ER material are evaluated at each specified cycle and surface roughness of the electrode is observed as well.

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Periodical:

Key Engineering Materials (Volumes 297-300)

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1172-1177

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.297-300.1172

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Online since:

November 2005

Authors:

Seung Bok Choi, Kyung Su Kim

Keywords:

Electrical Fatigue, Electrorheological Material, Mechanical Fatigue, Yield Stress

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