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Micro-mechanics of ionic electroactive polymer actuators

Punning, A.; Põldsalu, I.; Kaasik, F.; Vunder, V.; Aabloo, A. (2015). Micro-mechanics of ionic electroactive polymer actuators. Proceedings of SPIE - The International Society for Optical Engineering, 9430. SPIE, 94301K.10.1117/12.2084202.
publitseeritud konverentsiettekanne
Punning, A.; Põldsalu, I.; Kaasik, F.; Vunder, V.; Aabloo, A.
  • Inglise
Proceedings of SPIE - The International Society for Optical Engineering
Proceedings of SPIE - The International Society for Optical Engineering
SPIE
0277-786X
9430
January
2015
94301K
Ilmunud
3.1. Artiklid/peatükid lisas loetletud kirjastuste välja antud kogumikes (kaasa arvatud Thomson Reuters Book Citation Index, Thomson Reuters Conference Proceedings Citation Index, Scopus refereeritud kogumikud)

Viited terviktekstile

dx.doi.org/10.1117/12.2084202

Seotud asutused

University of Tartu

Lisainfo

© 2015 SPIE. Commonly, modeling of the bending behavior of the ionic electroactive polymer (IEAP) actuators is based on the classical mechanics of cantilever beam. It is acknowledged, that the actuation of the ionic electroactive polymer (IEAP) actuators is symmetric about the centroid - the convex side of the actuator is expanding and the concave side is contracting for exactly the same amount, while the thickness of the actuator remains invariant. Actuating the IEAP actuators and sensors under scanning electron microscope (SEM), in situ, reveals that for some types of them this approach is incorrect. Comparison of the SEM micrographs using the Digital Image Correction (DIC) method results with the precise strain distribution of the IEAP actuators in two directions: in the axial direction, and in the direction of thickness. This information, in turn, points to the physical processes taking place within the electrodes as well as membrane of the trilayer laminate of sub-millimeter thickness. Comparison of the EAP materials, engaged as an actuator as well as a sensor, reveals considerable differences between the micro-mechanics of the two modes.
actuator | DIC | digital image correlation | ionic electroactive polymer | scanning electron microscope | SEM | sensor | strain