Cart (Loading....) | Create Account
Close category search window

Mechanical bistability in liquid crystal elastomer-wire composite actuators

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Huang, Y.Y. ; Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom ; Biggins, J. ; Ji, Y. ; Terentjev, E.M.

Your organization might have access to this article on the publisher's site. To check, click on this link: 

We investigate a design of a composite combining a spontaneously actuating liquid crystal elastomer (LCE) with heating wires embedded directly into the rubbery matrix. We focus on the bistable configuration of wires at a critical angle to actuation direction, which theoretically provides a second energy minimum for wires deforming within an incompressible matrix. Experiments confirm the practicality of the theory when wires are embedded in a soft matrix. For a LCE-wire composite, the critical angle depends on the intrinsic actuation amplitude of its component LCE layers. It is further demonstrated for a side-chain LCE, an actuation stroke of ∼35% contraction was possible with a double-layer stacking design, while a triple-layer design showed a contracting stroke of ∼25%. Finally, we examine the dynamics of actuation and estimate the performance limit of a generic heat-stimulated LCE composite actuator in terms of its power efficiency and response time.

Published in:

Journal of Applied Physics  (Volume:107 ,  Issue: 8 )

Date of Publication:

Apr 2010

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.