, Volume 18, Issue 6, pp 319-334
Date: 04 Nov 2006

Soft elasticity and microstructure in smectic C elastomers

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Abstract

Smectic C elastomers are layered materials exhibiting a solid-like elastic response normal to the layers and a rubbery response in the plane. The set of strains K C minimizing the elastic energy contains a one-parameter family of simple stretches associated with an internal degree of freedom, coming from the in-plane component of the director. We investigate soft elasticity and the corresponding microstructure by determining the quasiconvex hull of the set K C , and use this to propose experimental tests that should make the predicted soft response observable.

Communicated by W. E