Compression Enhanced Shear Yield Stress of Electrorheological Fluid |
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| Authors: | ZHANG Min-Liang TIAN Yu JIANG Ji-Le ZHU Xu-Li MENG Yong-Gang WENShi-Zhu |
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| Affiliation: | State Key Laboratory of Tribology, Tsinghua University, Beijing 100084 |
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| Abstract: | Shear tests of an electrorheological fluid with pre-applied electric field and compression along the field direction are carried out. The results show that pre-compressions can increase the shear yield stress up to ten times. Under the same external electric field strength, a higher compressive strain corresponds to a larger shear yield stress enhancement but with slight current density decrease, which shows that the particle interaction potentials are not increased by compressions but the compression-induced chain aggregation dominates the shear yield stress improvement. This pre-compression technique might be useful for developing high performance flexible ER or magnetorheological couplings. |
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| Keywords: | 83 80 Gv 82 70 Gg |
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