Abstract: Electrorheological (ER) fluid is a new intelligent material that shows great potential in mechanical engineering. A kind of ER fluid with high shear strength, the effect of particulate volume fraction and temperature on ER effect, the mechanics of ER fluid under tension, compression, and shearing, the dynamic response of ER fluids under shearing, and some applications based on ER fluids, are introduced. The ambiguous of the mechanism of ER effect and the inaccurate description of the mechanical property of ER fluids are considered the key issues that have barricade the wide application of ER fluids and need to be resolved in the future.

Key words: Dynamic response, Electrorheological fluid, Mechanical property, Shear resistant stress