Liu Ying, Zhao Dong
School of Civil Engineering, Beijing Jiaotong University, Beijing 100044 China.
Phys Rev E. 2021 Jan;103(1-1):012701. doi: 10.1103/PhysRevE.103.012701.
Except for director orientation, the deformation modes of constrained liquid crystal elastomer thin plate display specimen geometry size dependence due to the boundary effect. In this paper, the effect of plate geometry size on the spontaneous deformation of a simply supported liquid crystal elastomer plate is studied. The relation between the deformation modes with director orientation and plate geometry size are investigated. Results show that the deformation modes are decided by the director orientation for a certain liquid crystal elastomer, but the geometry size affects the mode transformation with respect to the director. These results are supposed to be used in the design and application of liquid crystal elastomer-based smart actuators or sensors.
除了指向矢取向外，由于边界效应，受限液晶弹性体薄板的变形模式表现出对试样几何尺寸的依赖性。本文研究了简支液晶弹性体薄板的几何尺寸对其自发变形的影响。研究了指向矢取向与板几何尺寸之间的变形模式关系。结果表明，对于某一特定的液晶弹性体，变形模式由指向矢取向决定，但几何尺寸会影响相对于指向矢的模式转变。这些结果有望应用于基于液晶弹性体的智能致动器或传感器的设计与应用中。
