TITLE

Normalized method for comparing tensile behaviors of electrorheological fluids

AUTHOR(S)
Tian, Yu; Zou, Qian
PUB. DATE
June 2003
SOURCE
Applied Physics Letters;6/30/2003, Vol. 82 Issue 26, p4836
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Tensile behaviors of electrorheological (ER) fluids over a wide applied field range have been determined. Normalized tensile stress and the normalized electric field have been proposed to compare the elongations of ER fluids under different conditions. This clearly showed the nature of the stress-strain curves under different initial electric fields and the structure effect during the elongations. Corresponding to the tensile behavior change, the exponent of tensile yield stress versus electric field was also found to vary in different initial field range.
ACCESSION #
10106454

 

Related Articles

  • Electric field induced solidification. Tao, R.; Woestman, J. T.; Jaggi, N. K. // Applied Physics Letters;10/30/1989, Vol. 55 Issue 18, p1844 

    We present a description of electrorheological fluids in terms of an electric field induced phase transition at a critical electric field Ec. Theoretically, we find that as the applied field exceeds Ec, the osmotic pressure becomes negative and the liquid experiences a phase transition to a...

  • Pattern transitions induced by the surface properties of suspended microspheres... Weijia Wen; Kunquan Lu // Physics of Fluids;Jun97, Vol. 9 Issue 6, p1826 

    Presents experimental results showing the formation of different patterns of microspheres in electrorheological fluids depending on whether metal, or dielectric microspheres are presented in the electric field. Occurrence of a pattern transition when the surface conductivity of the solid phase...

  • Influence of a surface film on conducting particles on the electrorheological response with... Wu, C.W.; Conrad, H. // Journal of Applied Physics;6/15/1997, Vol. 81 Issue 12, p8057 

    Examines the role of a surface film on highly conducting particles on the electrorheological response at any alternating current field. Critical frequency separating the conduction domain from the dielectric domain; Ratio of the conductivity to the permittivity of the host oil; Suggested method...

  • Model for the electrorheological effect in flowing polymeric nematics. Rodríguez, R.F.; Reyes, J.A.; Manero, O. // Journal of Chemical Physics;4/22/1999, Vol. 110 Issue 16, p8197 

    An analytical model to study the response of a polymeric nematic confined in a rectangular cell, to a dc electric field is presented. The effect of a pressure-driven plane Poiseuille flow and its competition with the electric field is explicitly considered. For the final stationary state where...

  • Frequency-induced structure variation in electrorheological fluids. Wen, Weijia; Weijia Wen; Ma, Hongru; Hongru Ma; Tam, Wing Yim; Wing Yim Tam; Sheng, Ping; Ping Sheng // Applied Physics Letters;12/4/2000, Vol. 77 Issue 23 

    We show that by changing the frequency of the externally applied electric field there can be significant variation in the column structure of the electrorheological (ER) fluids, with attendant yield stress implications. This phenomenon is quantitatively explained by the Debye-type relaxation...

  • Optical activity of electrorheological fluids under external electric field. Zhao, X. P.; Zhao, Q.; Gao, X. M. // Journal of Applied Physics;4/1/2003, Vol. 93 Issue 7, p4309 

    The optical activity of electrorheological (ER) fluids under an external dc electric field was investigated. According to the nonhomogeneous structure model of ER fluids, we propose an expression of rotation angle from Maxwell's equations and Fresnel reflection. The optical activity of several...

  • Time-dependent and nonlinear effects in electrorheological fluids. Davis, L. C. // Journal of Applied Physics;2/15/1997, Vol. 81 Issue 4, p1985 

    An integral equation method is used to calculate particle-particle forces in electrorheological fluids. The method focuses on the gap region between particles where large electric-field concentrations occur. Effects due to time-dependent excitation and nonlinear (field-dependent) fluid...

  • Magnetic materials-based electrorheological fluids. Weijia Wen; Ning Wang // Applied Physics Letters;10/27/1997, Vol. 71 Issue 17, p2529 

    Introduces a type of electrorheological (ER) system denoted as magnetic materials-based electrorheological fluids. Size and source of the solid particles of the system; Suspension of microspheres in the liquid by the small magnetic field of the solid material; Stability and ER effect at low...

  • A general constitutive equation of an ER suspension based on the internal variable theory. Wang, B.; Xiao, Z. // Acta Mechanica;2003, Vol. 163 Issue 1/2, p99 

    A microstructural constitutive theory of ER suspensions was formulated in this investigation. The framework was based on the internal variable theory and the mechanism analysis. The ER suspension consists of fine particles with high dielectric constant and the supporting fluid. Under the action...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics