Physics – Condensed Matter – Soft Condensed Matter
Scientific paper
2009-12-11
Physical Review E 81, 060701(R) (2010)
Physics
Condensed Matter
Soft Condensed Matter
Specific results for spiral defects now added. References to Witten, Mahadevan and Ben Amar now added.
Scientific paper
10.1103/PhysRevE.81.060701
Nematic solids respond strongly to changes in ambient heat or light, significantly differently parallel and perpendicular to the director. This phenomenon is well characterized for uniform director fields, but not for defect textures. We analyze the elastic ground states of a nematic glass in the membrane approximation as a function of temperature for some disclination defects with an eye towards reversibly inducing three-dimensional shapes from flat sheets of material, at the nano-scale all the way to macroscopic objects, including non-developable surfaces. The latter offers a new paradigm to actuation via switchable stretch in thin systems.
Bhattacharya Kaushik
Modes Carl D.
Warner Mark
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