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	Transient response of an electrorheological fluid under square-wave electric field excitation
	Tian, Y ; Li, CH ; Zhang, ML ; Meng, YG ; Wen, SZ
	2010-05-10 ; 2010-05-10
关键词	electrorheological fluid parallel plates characteristic time constant electric field strength shear rate STEADY-SHEAR ER FLUID SUSPENSIONS TIME BEHAVIOR MODE FLOW RHEOLOGY STRESSES SYSTEMS Chemistry, Physical
中文摘要	The transient process of an electrorheological (ER) fluid based on zeolite and silicone oil sheared between two parallel plates to which a square-wave electric field is applied has been experimentally studied. The transient shear stress response to the strain or time is tested. The characteristic constants of time under different applied electric fields and shear rates have been determined. The response time is found to be proportional to shear rate with an exponent of about -0.75 in the tested shear rate range, which agrees with the theoretical predictions made by others. But it only shows a small dependence on the strength of the applied electric field. The results show that the transient process of ER fluids is related to the structure formation in the shearing. When the required shear strain is reached, the shear stress rises to a stable value under constant electric field. Although the electric held strength greatly affects the yield strength, it shows little effect on the stress response time. Also, experiments showed the electric field-induced shear stress decreased with an increase of shear rate. (c) 2005 Elsevier Inc. All rights reserved.
语种	英语 ; 英语
出版者	ACADEMIC PRESS INC ELSEVIER SCIENCE ; SAN DIEGO ; 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/24997]
专题	清华大学
推荐引用方式 GB/T 7714	Tian, Y,Li, CH,Zhang, ML,et al. Transient response of an electrorheological fluid under square-wave electric field excitation[J],2010, 2010.
APA	Tian, Y,Li, CH,Zhang, ML,Meng, YG,&Wen, SZ.(2010).Transient response of an electrorheological fluid under square-wave electric field excitation..
MLA	Tian, Y,et al."Transient response of an electrorheological fluid under square-wave electric field excitation".(2010).

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