Electromechanical Interplay in Deformable Dielectric Elastomer Networks

被引：27

作者：

Cohen, Noy ^{[1
]}

deBotton, Gal ^{[1
]}

机构：

[1] Ben Gurion Univ Negev, Dept Mech Engn, IL-8410501 Beer Sheva, Israel

来源：

PHYSICAL REVIEW LETTERS | 2016年 / 116卷 / 20期

基金：

以色列科学基金会;

关键词：

ACTUATORS;

D O I：

10.1103/PhysRevLett.116.208303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A systematic, statistical-mechanics-based analysis of the response of dielectric elastomers to coupled electromechanical loading is conducted, starting from the monomer level through the polymer chain and ending with closed-form expressions for the polarization and stress fields. It is found that the apparent response at the macrolevel is dictated by four microscopic parameters-the monomer type and polarizability and the chain length and density. Our analysis further reveals a new electrostrictive effect that either reinforces or opposes the polarization-induced deformation. The validity of the results is attested through comparisons with well-established experimental measurements of both the polarization field and the electrostrictive stress.

引用

页数：5

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