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NEMATIC ELASTOMERS AND MAGNETIC GELS

机译:弹性弹性体和磁凝胶

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摘要

We characterize the broken symmetries and the hydrodynamic variables for liquid crystalline elastomers and for magnetic gels. Both, static and dynamic macroscopic aspects are analyzed, in particular the elastic and rheological aspects. We discuss the width of the hydrodynamic regime as well as the cross-over to single molecule effects. Both systems share relative rotations as macroscopic variables and we investigate, in particular for liquid crystalline elastomers, their influence on the linearized as well as on the nonlinear elastic behavior. In view of the potential application as soft actuators we analyze shape changes in external mechanical and external magnetic/electric fields. We close by a critical comparison of the advantages and disadvantages of the class of materials considered here.
机译:我们表征了液晶弹性体和磁性凝胶的对称性和流体动力学变量。分析了静态和动态宏观方面,特别是弹性和流变方面。我们讨论了流体动力学机制的宽度以及与单分子效应的交叉。两个系统都将相对旋转作为宏观变量共享,并且我们特别针对液晶弹性体研究了它们对线性化以及非线性弹性行为的影响。考虑到作为软执行器的潜在应用,我们分析了外部机械和外部磁场/电场中的形状变化。通过对此处考虑的材料类别的优缺点进行严格的比较,我们得出结论。

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