It was reported that under the simultaneous stimulus of an electric field and shear, the particles in an ER fluid form lamellar formations in the direction of shear (adhered to one of the electrodes) which may be responsible for the ER activity more than the strength of the chains. In this way, it would be expected that the shear stress should change consistently with the morphology of the formations. In this work we studied the effect of shearing time, electric field strength and shear rate on the shear stress. We suggest that changes on shear stress with time are due to changes of the morphology of the lamellar formations.
|Number of pages||9|
|Journal||International Journal of Modern Physics B|
|Publication status||Published - 2001 Mar 20|
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Condensed Matter Physics