Journal
PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
Volume 467, Issue 2128, Pages 1121-1140Publisher
ROYAL SOC
DOI: 10.1098/rspa.2010.0352
Keywords
nematic; solids; disclinations; cones; anti-cones
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Funding
- EPSRC [EP/E051251/1, EP/F060033/1]
- EPSRC [EP/E051251/1, EP/F032773/1, EP/F060033/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E051251/1, EP/F060033/1, EP/F032773/1] Funding Source: researchfish
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We discuss methods of reversibly inducing non-developable surfaces from flat sheets of material at the micro-scale all the way to macroscopic objects. We analyse the elastic ground states of a nematic glass in the membrane approximation as a function of temperature for disclination defects of topological charge +1. An aim is to show that by writing an appropriate director field into such a solid, one could create a surface with Gaussian curvature, dynamically switchable from flat sheets while avoiding stretch energy. In addition to the prospect of programmable structures, such surfaces offer actuation via stretch in thin systems since when illumination is subsequently removed, unavoidable stretches return.
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