| 无磁场制备的磁流变弹性体的一种物理模型 |
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| 引用本文： | 党辉,龚兴龙,张培强.无磁场制备的磁流变弹性体的一种物理模型[J].中国科学技术大学学报,2006,36(4):398-401. |
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| 作者姓名： | 党辉 龚兴龙 张培强 |
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| 作者单位： | 中国科学技术大学力学和机械工程系,安徽,合肥,230027;中国科学院材料力学行为与设计重点实验室,安徽,合肥,230027 |
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| 基金项目： | 中国科学院"百人计划";高校博士学科点科研项目 |
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| 摘 要： | 假设在一定条件下,无磁场制备的磁流变弹性体中,微米量级的铁磁颗粒能形成自组装的链状结构或柱状结构,且链或柱的轴线方向在空间角内均匀分布.通过分析柱或链的应变和磁场能,在传统的成链模型的基础上,得出了相同体积比的无磁场制备和有磁场制备的磁流变弹性体的磁流变效应的比率,与文献中的实验结果基本符合.
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| 关 键 词： | 磁流变弹性体 各向同性 磁流变效应 |
| 文章编号： | 0253-2778(2006)04-0398-04 |
| 收稿时间： | 09 30 2004 12:00AM |
| 修稿时间： | 04 6 2005 12:00AM |
A physical model of isotropic magnetorheological elastomer |
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| DANG Hui,GONG Xing-long,ZHANG Pei-qiang.A physical model of isotropic magnetorheological elastomer[J].Journal of University of Science and Technology of China,2006,36(4):398-401. |
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| Authors: | DANG Hui GONG Xing-long ZHANG Pei-qiang |
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| Institution: | 1. Department of Modern Mechanics,USTC. Hefei 230027, China ; 2. CAS Key Laboratory of Mechanical Behavior and Design of Materials ,USTC. Hefei 230027, China |
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| Abstract: | A model of isotropic magnetorheological(MR) elastomers was proposed.Assuming that,under certain conditions,micrometer-sized ferrous particles in the matrix form self-assembled chains or columns in directions randomly dispersed in spatial angle,and based on the traditional chain model of anisotropic MR elastomers,in which the chains have a uniform direction,the shear strain and magnetic energy of every single chain or column in a certain direction were analyzed,and the ratio of MR effect in isotropic and anisotropic MR elastomers with the same particle volume concentration was studied.The results show that MR effect on isotropic MR elastomers is 42.4% of that in anisotropic MR elastomers,which agrees with the experiment results. |
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| Keywords: | MR elastomer isotropic MR materials MR effect |
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