Tension and Shearing Characteristics of Magneto Rheological Fluid under Magnetic Fields

Abstract:

The mechanical properties of a magneto rheological (MR) fluid in tension and shearing have been studied in the magnetic field which is generated by a coil carrying different magnitudes of DC electrical current. An experiment setup was designed and fabricated to perform this operation. The magnetic behavior of the equipment was analyzed using software of ANSYS/Multiphysics. The shear yield stress represents the effect of the interaction force along the shear direction (perpendicular to the direction of the magnetic field). The tensile yield stress of MR fluids represents the effect of the interaction force between the polarized particles along the direction of the applied magnetic field. The shearing tests showed that the shear yield stress is proportional to the external magnetic flux density with an exponent of 1.19. The tensile yield stress is about four times of shear yield stress.

• Periodical: Advanced Materials Research (Volumes 468-471)
• Pages: 2657-2660
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.468-471.2657
• Online since: February 2012
• Authors: Xiao Wang, Hong Yun Wang
• Keywords: MR Fluid, Shear Yield Stress, Tensile Yield Stress

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