Static and Dynamic Characterization of Magnetorheological Elastomers Under Shear Mode Operation

Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation Pub Date : 2018-09-10 DOI:10.1115/SMASIS2018-8209

Ashkan Dargahi, R. Sedaghati, S. Rakheja

{"title":"Static and Dynamic Characterization of Magnetorheological Elastomers Under Shear Mode Operation","authors":"Ashkan Dargahi, R. Sedaghati, S. Rakheja","doi":"10.1115/SMASIS2018-8209","DOIUrl":null,"url":null,"abstract":"Static and dynamic properties of six magnetorheological elastomers (MRE) with iron particles volume fraction ranging from 12.5% to 40% were experimentally characterized under shear mode operation. The experiments were designed on the basis of standardized methods defined in ISO-1827 and ISO-4664. The static shear stress-shear strain data obtained under strains up to 30% were used to quantify absolute and relative MR effects of the MREs as functions of magnetic flux density in the 0 to 450 mT range. The MRE specimen with highest iron particles fraction and a softening agent revealed greatest MR effect. The dynamic characteristics of this MRE specimen were then evaluated under harmonic excitations in the 0.1–50 Hz frequency range with shear strain amplitude and magnetic flux density ranging from 2.5 to 20%, and 0 to 450 mT, respectively. The data were then utilized to evaluate elastic and loss shear moduli of the specimen.","PeriodicalId":392289,"journal":{"name":"Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1115/SMASIS2018-8209","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

Static and dynamic properties of six magnetorheological elastomers (MRE) with iron particles volume fraction ranging from 12.5% to 40% were experimentally characterized under shear mode operation. The experiments were designed on the basis of standardized methods defined in ISO-1827 and ISO-4664. The static shear stress-shear strain data obtained under strains up to 30% were used to quantify absolute and relative MR effects of the MREs as functions of magnetic flux density in the 0 to 450 mT range. The MRE specimen with highest iron particles fraction and a softening agent revealed greatest MR effect. The dynamic characteristics of this MRE specimen were then evaluated under harmonic excitations in the 0.1–50 Hz frequency range with shear strain amplitude and magnetic flux density ranging from 2.5 to 20%, and 0 to 450 mT, respectively. The data were then utilized to evaluate elastic and loss shear moduli of the specimen.

查看原文本刊更多论文

剪切模式下磁流变弹性体的静态和动态特性

对铁颗粒体积分数为12.5% ~ 40%的6种磁流变弹性体(MRE)在剪切模式下的静态和动态性能进行了实验表征。实验是根据ISO-1827和ISO-4664中定义的标准化方法设计的。在应变高达30%的情况下获得的静态剪切应力-剪切应变数据，量化了0 ~ 450 mT范围内MREs的绝对MR效应和相对MR效应随磁通量密度的变化。铁颗粒分数最高且添加了软化剂的MRE试样表现出最大的MR效应。在0.1 ~ 50 Hz频率范围内，剪切应变幅值为2.5 ~ 20%，磁通密度为0 ~ 450 mT，在谐波激励下，对MRE试样的动态特性进行了研究。然后利用这些数据来评估试样的弹性模量和损失剪切模量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation, and Control of Adaptive Systems; Integrated System Design and Implementation

自引率

0.00%

发文量