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Advances in Materials Science and Engineering
Volume 2013, Article ID 290691, 6 pages
http://dx.doi.org/10.1155/2013/290691
Research Article

Analysis and Testing of Chain Characteristics and Rheological Properties for Magnetorheological Fluid

1College of Resources and Environmental, Chongqing University, Chongqing 400044, China
2College of Mechanical Engineering, Chongqing University of Technology, Chongqing 400054, China

Received 16 July 2013; Accepted 9 October 2013

Academic Editor: Xing Chen

Copyright © 2013 Song Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Digital holographic microscopy is presented in this study, which can measure the magnetorheological (MR) fluid in different volume fractions of particles and different magnetic field strengths. Based on the chain structure of magnetic particle under applied magnetic field, the relationships between shear yield stress, magnetic field, size, and volume fraction of MR fluid in two parallel discs are established. In this experiment, we choose three MR fluid samples to check the rheological properties of MR fluid and to obtain the material parameters with the test equipment of MR fluid; the conclusion is effective.