Temperature Dependence of Magneto-rheological Materials

被引：87
|
作者：
Sahin, Huseyin [1 ]
Wang, Xiaojie [1 ]
Gordaninejad, Faramarz [1 ]
机构：
[1] Univ Nevada, Dept Mech Engn, Composite & Intelligent Mat Lab, Reno, NV 89557 USA
来源：
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES | 2009年 / 20卷 / 18期
基金：
美国国家科学基金会;
关键词：
magneto-rheological grease; magneto-rheological fluids; temperature dependence; yield stress; apparent viscosity; MAGNETORHEOLOGICAL FLUIDS; VISCOSITY; EMULSION; LIQUIDS;
D O I：
10.1177/1045389X09351608
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The properties of magneto-rheological (MR) materials are temperature dependent. Compared to MR fluids, MR greases (MRGs) are more sensitive to temperature due to their inherent behavior of carrier materials. In this study, MRGs are studied to examine the temperature effect on their yield stress and apparent viscosity. Experimental data are obtained for magnetic fields ranging from 0.14 T to 0.53 T and temperatures ranging from 10 degrees C to 70 degrees C. It is observed that temperature has a significant effect on the field-induced yield stress of MRGs. Anew yield stress model, based on an extended Herschel-Bulkley constitutive relation, in which the shear yield stress is a function of magnetic field and temperature, is proposed. Excellent agreement between the theoretical results and experimental data is obtained.
引用
收藏
页码：2215 / 2222
页数：8
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