Soft Elasticity in Nematic Liquid-Crystal Networks

Details Soft Elasticity in Nematic Liquid-Crystal Networks Soft Elasticity in Nematic Liquid-Crystal Networks

2008-06-20

arxiv.org/abs/0806.3445v2

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 4 figures

Scientific paper

Liquid-crystal networks consist of weakly crosslinked polymers that are coupled to liquid-crystal molecules. The resultant hybrid system has rich elastic properties. We develop a phase field model to describe mechanical properties of a hexagonal liquid-crystal network. The hexagonal liquid-crystal network is found to have soft shear deformations. The elastic properties are predicted analytically and confirmed with numerical simulations. In addition the model incorporates non-linear elasticity and dislocations or disclinations.

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