Unexpected shear strength change in magnetorheological fluids | Zendy

Yu Tian | Zendy; KaiKai Chen | Zendy; Lei Shan | Zendy; Xiangjun Zhang | Zendy; Yonggang Meng | Zendy

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Unexpected shear strength change in magnetorheological fluids

Author(s) -

Yu Tian,

KaiKai Chen,

Lei Shan,

Xiangjun Zhang,

Yonggang Meng

Publication year - 2014

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4894237

Subject(s) - magnetorheological fluid , materials science , shear rate , shear (geology) , shear stress , volume fraction , composite material , magnetic field , pure shear , mechanics , simple shear , rheology , physics , quantum mechanics

Smart materials of magnetorheological (MR) fluids could be turned from a liquid state into a solid state, which solidification extent or shear strength often increases monotonically with the applied magnetic field. In this study, the shear stress of a dilute MR fluid decreased with increasing applied magnetic field at a constant shear rate. The dynamic shear stress was significantly higher than the stable counterpart at medium magnetic fields. They are ascribed to the slow particle structure transformation. A higher shear rate and particle volume fraction could reduce the transient time and the shear strength difference

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