Simulation studies of internal mechanisms in the static deflection of a cellulose electroactive paper actuator

Title
Simulation studies of internal mechanisms in the static deflection of a cellulose electroactive paper actuator
Authors
Jang, S.D.; Kim, J.
Keywords
CERAMIC MODELS, CANTILEVER, CANTILEVER
Issue Date
2008-03
Publisher
AMER INST PHYSICS
Abstract
Studies of voltage-induced deflections in electroactive paper (EAPap) have been carried out. On the experimental side, measurements of bias-dependent deflections and strain, water absorption as a function of time, and relative humidity were obtained for the cellulose EAPap actuator. In addition, model simulations have also been carried out to probe and quantify the role of the various internal mechanisms responsible for the deflection. Our simulation predictions yield good agreement with the measured deflection data for the EAPap. The modeling suggests that internal ion content and its migration, water absorption leading to a nonuniform permittivity, random variations in the transverse piezoelectric-coupling coefficient d(31,i), and the modulus of elasticity all collectively contribute to the EAPap deflection electrophysics. It also appears that higher sensitivity, with a minimal bias dependence, could be achieved by deliberately adding ions during EAPap processing.
URI
http://dspace.inha.ac.kr/handle/10505/1694
ISSN
0021-8979
Appears in Collections:
College of Engineering(공과대학) > Mechanical Engineering(기계공학) > Journal Papers, Reports(기계공학 논문, 보고서)
Files in This Item:
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