Young-Keun Kim, Jangheon Kim, Daeik Jang, Soohyun Kim and Wonsuk Jung* Pages 319 - 323 ( 5 )
Background: Recently, addition of multi-walled-carbon-nanotubes (MWCNTs) has been researched to enhance the rheological properties of magnetorheological (MR) materials of fluid, elastomer and gel. However, there is a lack of study on the effects of MWCNTs on hydrophilic based MR gels (MRG), which have shown a high potential to be applied in smart vibration control systems.
Objective: This study is aimed to analyze the effect of MWCNTs on the dynamic stiffness of hydrophilic based MRG.
Method: Dynamic stiffness of hydrophilic based MRG was experimentally computed under different magnetic fields and strain amplitudes.
Results: Experimental results indicate that the addition of MWCNTs in hydrophilic MRG showed overall degradation of stiffness variation in contradictory to similar research performed on silicon oil based MR gel.
Conclusion: These contradictory results reveal that MRGs of hydrophilic base have a different interaction with MWCNTs than hydrophobic oil base.
Magnetorheological gel, hybrid composites, multi-walled carbon nanotubes, magnetorheological composites, dynamic stiffness, hydrophilic-base.
Department of Mechanical and Control Engineering, Handong Global University, Pohang, Kyung-Buk 375-554, Department of Mechanical Engineering, KAIST, Daejeon 305-701, School of Civil and Environmental Engineering, KAIST, Daejeon 305-701, Department of Mechanical Engineering, KAIST, Daejeon 305-701, School of Mechanical Engineering, Chungnam National University, Daejeon 305-764