Phenomenological description of semi-soft nematic elastomers  

作　　者：刁文文 孟庆田 叶方富 

机构地区：[1]College of Physics and Electronics, Shandong Normal University, Jinan 250014, China [2]Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

出　　处：《Chinese Physics B》2016年第6期325-331,共7页中国物理B（英文版）

基　　金：the support of the Chinese Academy of Sciences

摘　　要：Nematic elastomers are new materials that have many remarkable properties.In this article,we study how nonlinear elasticity of semi-soft nematic elastomers can be described phenomenologically.We start with a theory based on strain tensor only,and then continue to develop a phenomenological description with the liquid crystal order tensor included explicitly.Such a description has the virtue of being able to treat the strain tensor and the liquid crystal order tensor equally and thus making the complicated symmetries of nematic elastomers easier to understand.Nematic elastomers are new materials that have many remarkable properties.In this article,we study how nonlinear elasticity of semi-soft nematic elastomers can be described phenomenologically.We start with a theory based on strain tensor only,and then continue to develop a phenomenological description with the liquid crystal order tensor included explicitly.Such a description has the virtue of being able to treat the strain tensor and the liquid crystal order tensor equally and thus making the complicated symmetries of nematic elastomers easier to understand.

关 键 词：nematic elastomers SYMMETRY phenomenological theory ELASTICITY 

分 类 号：O753.2[理学—晶体学] N02[自然科学总论—科学技术哲学]