RATE DEPENDENT STRESS-STRETCH RELATION OF DIELECTRIC ELASTOMERS SUBJECTED TO PURE SHEAR LIKE LOADING AND ELECTRIC FIELD  

作　　者：Shaoxing Qu Ke Li Tiefeng Li Hanqing Jiang Miao Wang Zhenhua Li 

机构地区：[1]Department of Engineering Mechanics,Zhejiang University,Hangzhou 310027,China [2]Soft Matter Research Center(SMRC),Zhejiang University,Hangzhou 310027,China [3]School for Engineering of Matter,Transport and Energy,~4rizona State University,TemPe,AZ 85287,USA [4]Department of Physics,Zhejiang University,Hangzhou 310027,China

出　　处：《Acta Mechanica Solida Sinica》2012年第5期542-549,共8页固体力学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No. 10832009);the Program for New Century Excellent Talents in University (NCET-08-0480);Zhejiang Provincial Natural Science Foundation of China (No. Z1110057);the Fundamental Research Funds for the Central Universities

摘　　要：The performance of dielectric elastomer （DE） transducers is significantly affected by viscoelastic relaxation-induced electromechanical dissipations. This paper presents an experi- mental study to obtain the rate dependent stress-stretch relation of DE membranes （VHBTM9473） subjected to pure shear like loading and electric loading simultaneously. Stretching rate depen- dent behavior is observed. The results also show that the tensile force decreases as the voltage increases. The observations are compared with predictions by a viscoelastic model of DE. This experiment may be used for further studies of dynamic electromechanical coupling properties of DEs.The performance of dielectric elastomer （DE） transducers is significantly affected by viscoelastic relaxation-induced electromechanical dissipations. This paper presents an experi- mental study to obtain the rate dependent stress-stretch relation of DE membranes （VHBTM9473） subjected to pure shear like loading and electric loading simultaneously. Stretching rate depen- dent behavior is observed. The results also show that the tensile force decreases as the voltage increases. The observations are compared with predictions by a viscoelastic model of DE. This experiment may be used for further studies of dynamic electromechanical coupling properties of DEs.

关 键 词：dielectric elastomer VISCOELASTIC electromechanical coupling membranes 

分 类 号：TQ334.9[化学工程—橡胶工业] TH133.4[机械工程—机械制造及自动化]