%0 Report
%D 2007
%T Soft elasticity and microstructure in smectic C elastomers
%A Antonio DeSimone
%A James Adams
%A Sergio Conti
%X Smectic C elastomers are layered materials exhibiting a solid-like elastic response along the layer normal and a rubbery one in the plane. The set of strains 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 , and use this to propose experimental tests that should make the predicted soft response observable.
%B Contin. Mech. Thermodyn. 18 (2007) 319-334
%G en_US
%U http://hdl.handle.net/1963/1811
%1 2403
%2 Mathematics
%3 Functional Analysis and Applications
%$ Submitted by Andrea Wehrenfennig (andreaw@sissa.it) on 2006-04-12T09:42:24Z\\nNo. of bitstreams: 1\\nsissa05M-06.pdf: 394760 bytes, checksum: 95c4183d6cb1210bf2a689ae083a3cb7 (MD5)
%R 10.1007/s00161-006-0031-8
%0 Journal Article
%J Comput. Methods Appl. Mech. Engrg. 194 (2005) 2534-2549
%D 2005
%T Self-similar folding patterns and energy scaling in compressed elastic sheets
%A Sergio Conti
%A Antonio DeSimone
%A Stefan MÃ¼ller
%X Thin elastic sheets under isotropic compression, such as for example blisters formed by thin films which debonded from the substrate, can exhibit remarkably complex folding patterns. We discuss the scaling of the elastic energy with respect to the film thickness, and show that in certain regimes the optimal energy scaling can be reached\\nby self-similar folding patterns that refine towards the boundary, in agreement with experimental observations. We then extend the analysis\\nto anisotropic compression, and discuss a simplified scalar model which suggests the presence of a transition between a regime where\\nthe deformation is governed by global properties of the domain and another one where the direction of maximal compression dominates and the scale of the folds is mainly determined by the distance to the boundary in the direction of the folds themselves.
%B Comput. Methods Appl. Mech. Engrg. 194 (2005) 2534-2549
%I Elsevier
%G en_US
%U http://hdl.handle.net/1963/3000
%1 1333
%2 Mathematics
%3 Functional Analysis and Applications
%$ Submitted by Andrea Wehrenfennig (andreaw@sissa.it) on 2008-10-01T10:37:14Z\\nNo. of bitstreams: 1\\npreprint2004_3.pdf: 907333 bytes, checksum: 2b22c209b91ba2ddacc1a1c14a9054a2 (MD5)
%R 10.1016/j.cma.2004.07.044