材料科学
弹性体
电介质
复合材料
剪切(地质)
介电弹性体
变形(气象学)
执行机构
结构工程
控制器(灌溉)
机械工程
工程类
电气工程
农学
光电子学
生物
作者
Llewellyn Tang,Yuxi Ding,Lei Liu,Junshi Zhang
标识
DOI:10.1088/1361-665x/ac383e
摘要
Abstract In this article, we propose a method to realize the pure shear deformation mode of dielectric elastomer (DE) membranes by tuning two in-plane prestresses. With utilization of carbon grease electrodes, VHB 4905 membranes are prestretched and attached into a retractable device, forming a pure-shear deformation controller. Experimental results demonstrate that, accurate pure shear deformation mode of DEs can be realized by tuning the mechanical loads in the two directions of the deformation controller. Furthermore, large deformation in the direction of free state can be achieved without electromechanical instabilities. The designed deformation controller accurately realizes the specific pure shear deformation mode of DEs and can be utilized to help design the practical soft actuators.
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