J. Phys. II France
Volume 4, Numéro 9, September 1994
Page(s) 1457 - 1459
DOI: 10.1051/jp2:1994210
J. Phys. II France 4 (1994) 1457-1459

Layer-network coupling in smectic elastomers

T.C. Lubensky1, E.M. Terentjev2 and M. Warner2

1  Physics Department, University of Pennsylvania, Philadelphia, PA 19104, U.S.A.
2  Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE, England

(Received 20 May 1994, accepted 18 July 1994)

The complex coupling between elastic strains and smectic layer distortions in smectic A elastomers is re-analysed in terms of the penalty for the relative translations of layers with respect to the matrix in which they are embedded. This modifies the starting point of a recent theory of the elastic free energy of smectic A elastomers (Terentjev E.M. and Warner M., J. Phys. II France 4 (1994) 111-126), but leaves most of the analysis itself and the conclusions unchanged. In the large, layers move affinely with the elastic matrix, but there are layer fluctuations possible on a scale set by the mean size of chains in the network. There is a rigid constraint that uniform shear strains of the network produce corresponding uniform rotations of the smectic layer system.

© Les Editions de Physique 1994