液晶高弹体的光致变形与弯曲行为研究  

Light Induced Deformation and Bending in Liquid Crystal Elastomers

作　　者：姜馨[1] 张田[1] 霍永忠[1] 

机构地区：[1]复旦大学力学与工程科学系,上海200433

出　　处：《力学季刊》2005年第4期647-649,共3页Chinese Quarterly of Mechanics

基　　金：国家自然科学基金(10372023);上海市基础研究重点项目(04JC14034)

摘　　要：本文研究了一类光敏液晶高弹体在紫外光照射下的变形和弯曲行为。在分析了近年发现的光敏液晶高弹体中光致变形的机理和规律的基础上,给出了该材料一维变形本构关系,研究其变形行为,进而利用铁木辛科双金属片弯曲的思想建立了梁的光致弯曲模型。UV light induced deformation and bending in certain type of photochromic liquid crystal elastomers were studied. The mechanism and the governing equations were analyzed firstly for the photomechanical effect in newly discovered photochromic liquid crystal elastomers. Constitutive equation was then introduced for one dimensional loading condition to study the deformation behavior. Light induced bending was modeled following the idea of Timonshenko bimetal model.

关 键 词：液晶高弹体 光-力效应 双金属片模型 

分 类 号：O341[理学—固体力学]