CUED Publications database

Curvature by design and on demand in liquid crystal elastomers

Kowalski, BA and Mostajeran, C and Godman, NP and Warner, M and White, TJ (2018) Curvature by design and on demand in liquid crystal elastomers. Physical Review E, 97. 012504-. ISSN 2470-0045

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Abstract

The shape of liquid crystalline elastomers (LCEs) with spatial variation in the director orientation can be transformed by exposure to a stimulus. Here, informed by previously reported analytical treatments, we prepare complex spiral patterns imprinted into LCEs and quantify the resulting shape transformation. Quantification of the stimuli-induced shapes reveals good agreement between predicted and experimentally observed curvatures. We conclude this communication by reporting a design strategy to allow LCE films to be anchored at their external boundaries onto rigid substrates without incurring internal, mechanical-mismatch stresses upon actuation, a critical advance to the realization of shape transformation of LCEs in practical device applications.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Control
Depositing User: Unnamed user with email sms67@cam.ac.uk
Date Deposited: 09 May 2018 20:10
Last Modified: 09 Sep 2021 02:34
DOI: 10.1103/PhysRevE.97.012504