@inproceedings{bc282493d0994185bfee3cca8863d8ff,
title = "Observation of creep behavior of cellulose Electro-Active Paper (EAPap) Actuator",
abstract = "Understanding of creep effects on actuating mechanisms is important to precisely figure out the behavior of material. Creep behaviors of cellulose based Electro-Active Paper (EAPap) were studied under different constant loading conditions. We found the structural modification of microfibrils in EAPap after creep test. Structural differences of asprepared and after creep tested samples were compared by SEM measurements. From the measured creep behaviors by different loading conditions, two different regions of induced strain and current were clearly observed as the measurement time increased. It is consider that local defects may occur and becomes micro-dimple or micro-crack formations in lower load cases as localized deformation proceeds, while the shrinkage of diameter of elongated fibers was observed only at the high level of loading. Therefore, cellulose nanofibers may play a role to be against the creep load and prevent the localized structural deformations. The results provide useful creep behavior and mechanism to understand the mechanical behavior of thin visco-elastic EAPap actuator.",
keywords = "Cellulose, Creep, Deformation, Electro-Active paper (EAPap), Microcrack, Microfibril",
author = "Kim, {Joo Hyung} and Lee, {Sang Woo} and Yun, {Gyu Young} and Chulho Yang and Kim, {Heung Soo} and Jaehwan Kim",
year = "2009",
doi = "10.1117/12.815565",
language = "English",
isbn = "9780819475497",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Behavior and Mechanics of Multifunctional Materials and Composites 2009",
note = "Behavior and Mechanics of Multifunctional Materials and Composites 2009 ; Conference date: 09-03-2009 Through 12-03-2009",
}