| 介电高弹聚合物理论 |
| |
| 引用本文： | 锁志刚,曲绍兴.介电高弹聚合物理论[J].力学进展,2011,41(6):730-750. |
| |
| 作者姓名： | 锁志刚 曲绍兴 |
| |
| 作者单位： | 1. School of Engineering and Applied Sciences, Kavli Institute for Nanobio Science and Technology, Harvard;
2. |
| |
| 基金项目： | 活性软材料研究项目的一部分 |
| |
| 摘 要： | 软材料受刺激会发生变形, 该变形会引起相应的功能, 这种材料称为活性软材料(soft active material, SAM). 本综述主要讨论介电高弹聚合物这一类活性软材料. 当介电高弹聚合物薄膜受到厚度方向的电压作用时, 薄膜厚度减小同时面积增大, 可导致超过100{\%}的应变. 介电高弹聚合物作为转换器被广泛应用, 包括柔性机器人、智能光学器件、盲文显示屏、发电机等. 本文综述了建立在连续介质力学和热力学框架内的、并且基于分子理论描述和经验观测的介电高弹聚合物理论. 该理论耦合了大变形和电势, 描述了非线性和非平衡行为, 如力电失稳和黏弹性. 采用该理论能够通过有限元方法模拟实际构型的转换器, 计算力电能量转换的效率, 给出电致大变形的可行途径. 该理论有助于材料和器件设计.
|
| 关 键 词： | 活性软材料 介电高弹聚合物 力电失稳 大变形 转换器 |
| 收稿时间： | 2011-02-17 |
| 修稿时间： | 2011-02-25 |
THEORY OF DIELECTRIC ELASTOMERS |
| |
| SUO Zhigang School of Engineering , Applied Sciences,Kavli Institute for Nanobio Science , Technology,Harvard University,Cambridge,MA ,USA.THEORY OF DIELECTRIC ELASTOMERS[J].Advances in Mechanics,2011,41(6):730-750. |
| |
| Authors: | SUO Zhigang School of Engineering Applied Sciences Kavli Institute for Nanobio Science Technology Harvard University Cambridge MA USA |
| |
| Institution: | SUO Zhigang School of Engineering and Applied Sciences,Kavli Institute for Nanobio Science and Technology,Harvard University,Cambridge,MA 02138,USA |
| |
| Abstract: | In response to a stimulus,a soft material deforms,and the deformation provides a function.We call such a material a soft active material(SAM).This review focuses on one class of soft active materials:dielectric elastomers.When a membrane of a dielectric elastomer is subject to a voltage through its thickness,the membrane reduces thickness and expands area,possibly straining over 100%.The dielectric elastomers are being developed as transducers for broad applications,including soft robots,adaptive optics,Bra... |
| |
| Keywords: | soft active material dielectric elastomer electromechanical instability large deformation transducer |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《力学进展》浏览原始摘要信息 |
| 点击此处可从《力学进展》下载免费的PDF全文 |
|
