Bending and wrinkling as competing relaxation pathways for strained free-hanging films
| P. Cendula, S. Kiravittaya, Y. F. Mei, C. Deneke, O. G. Schmidt Phys. Rev. B 79, 085429 (2009) URL PDF |
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| Abstract | ||
| An equilibrium phase diagram for the shape of compressively strained free-hanging films is developed by total strain energy minimization. For small strain gradients   , the film wrinkles, while for sufficiently large, a phase transition from wrinkling to bending occurs. We consider competing relaxation mechanisms forfree-hanging films, which have rolled up into tube structures, and we provide an upper limit for the maximum achievable number of tube rotations. |