CUED Publications database

Frame, metric and geodesic evolution in shape-changing nematic shells

Mostajeran, C and Warner, M and Modes, CD (2017) Frame, metric and geodesic evolution in shape-changing nematic shells. Soft Matter, 13. pp. 8858-8863. ISSN 1744-683X

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Non-uniform director fields in flat, responsive, glassy nematic sheets lead to the induction of shells with non-trivial topography on the application of light or heat. Contraction along the director causes metric change, with, in general, the induction of Gaussian curvature, that drives the topography change. We describe the metric change, the evolution of the director field, and the transformation of reference state material curves, e.g. spirals into radii, as curvature develops. The non-isometric deformations associated with heat or light change the geodesics of the surface, intriguingly even in regions where no Gaussian curvature results.

Item Type: Article
Divisions: Div F > Control
Depositing User: Cron Job
Date Deposited: 13 Nov 2017 20:08
Last Modified: 31 Aug 2021 07:34
DOI: 10.1039/c7sm01596h