Stepwise compression of electrorheological (ER) fluids based on zeolite and silicone oil under constant voltages was experimentally investigated. The difference between peak compressive stress and stable compressive stress obtained during the stepwise compression changed with the change of applied voltages and compressive strains. The decay ratio of compressive stress, which may depict the solidification level of ER fluids under external electric fields, decreased with the increase of electric field and compressive strains. Also both the peak compressive stress and the stable compressive stress were shown to be determined by the electric field under low applied voltages. With the increase of the applied voltage, ER fluids were shown to be described by the mechanics of compressing a continuous fluid. At a much stronger ER effect, a deviation from the prediction of the continuous media theory occurred, and structure strengthening of ER fluids by compression should be considered.
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1 December 2002
Research Article|
December 01 2002
Mechanical property of electrorheological fluid under step compression
Yu Tian;
Yu Tian
State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
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Yonggang Meng;
Yonggang Meng
State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
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Hairong Mao;
Hairong Mao
State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
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Shizhu Wen
Shizhu Wen
State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China
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J. Appl. Phys. 92, 6875–6879 (2002)
Article history
Received:
June 20 2002
Accepted:
September 12 2002
Citation
Yu Tian, Yonggang Meng, Hairong Mao, Shizhu Wen; Mechanical property of electrorheological fluid under step compression. J. Appl. Phys. 1 December 2002; 92 (11): 6875–6879. https://doi.org/10.1063/1.1518752
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