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Modeling of a soft multiple-shape-memory ionic polymer-metal composite actuator
Author(s): Qi Shen; Tyler Stalbaum; Sarah Trabia; Taeseon Hwang; Robert Hunt; Kwang Kim
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Paper Abstract

The multiple-shape-memory ionic polymer-metal composite (MSM-IPMC) actuator can demonstrate complex 3D deformation. The MSM-IPMC have two characteristics, which are the electro-mechanical actuation effect and the thermal-mechanical shape memory effect. The bending, twisting, and oscillating motions of the actuator could be controlled simultaneously or separately by means of thermal-mechanical and electro-mechanical transactions. In our study, we theoretically modelled and experimentally investigated the MSM-IPMC. We proposed a new physical principle to explain the shape memory behavior. A theoretical model of the multiple shape memory effect of MSMIPMC was developed. It is based on the assumption that the multiple shape memory effect is caused by the thermal stress and each individual Young’s modulus is ‘memorized’ during the previous programming process. As the MSM-IPMC was reheated to each temperature, the corresponding thermal stress was applied on the MSM-IPMC, and the Young’s modulus was recovered, which result in the shape recovery of the MSM-IPMC. To verify the model, a MSM-IPMC sample was prepared. Experimental tests of MSM-IPMC were conducted. By comparing the simulation results and the experimental results, both results have a good agreement. The current study is beneficial for the better understanding of the underlying physics of MSM-IPMC.

Paper Details

Date Published: 11 April 2017
PDF: 5 pages
Proc. SPIE 10165, Behavior and Mechanics of Multifunctional Materials and Composites 2017, 101650C (11 April 2017); doi: 10.1117/12.2258495
Show Author Affiliations
Qi Shen, Univ. of Nevada, Las Vegas (United States)
Tyler Stalbaum, Univ. of Nevada, Las Vegas (United States)
Sarah Trabia, Univ. of Nevada, Las Vegas (United States)
Taeseon Hwang, Univ. of Nevada, Las Vegas (United States)
Robert Hunt, Univ. of Nevada, Las Vegas (United States)
Kwang Kim, Univ. of Nevada, Las Vegas (United States)


Published in SPIE Proceedings Vol. 10165:
Behavior and Mechanics of Multifunctional Materials and Composites 2017
Nakhiah C. Goulbourne, Editor(s)

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