Field dependence of viscoelastic properties of MR elastomers
Field dependence of viscoelastic properties of MR elastomers
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DOI：
10.1142/s0217979202012499
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发表时间：
2002-07-20
影响因子：
1.7
通讯作者：
Bossis, G
中科院分区：
文献类型：
--
作者：
Bellan, C;Bossis, G
在静态和动态两种牵引模式下，研究了一种由微羰基铁颗粒制成的磁活性弹性体，其结构呈细长簇状，嵌入在硅弹性体基体中。施加120kA/m的磁场，在4 ~ 5%的应变下，弹性模量变化约为0.6MPa。在低应变（10（-4）至10(-3)）下，动态存储模量的变化幅度更大（4MPa）。考虑到纤维状结构的存在，可以解释应力-应变曲线的形状。
A magnetoactive elastomer made of micronic carbonyl iron particles, structured in elongated clusters and embedded in a silicon elastomer matrix is studied under traction both in static and dynamic modes, The application of a magnetic field of 120kA/m induces a change in elastic moduli of about 0.6MPa at strains of 4 to 5%. Still higher changes(4MPa) are observed in dynamic storage modulus at low strains (10(-4) to 10(-3)). The shape of the stress-strain curves are explained by taking into account the existence of a fiber like structure.