Bending and wrinkling as competing relaxation pathways for strained free-hanging films
Bending and wrinkling as competing relaxation pathways for strained free-hanging films
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DOI：
10.1103/physrevb.79.085429
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发表时间：
2009-02-01
影响因子：
3.7
通讯作者：
Schmidt, O. G.
中科院分区：
文献类型：
--
作者：
Cendula, P.;Kiravittaya, S.;Schmidt, O. G.
利用总应变能最小化原理，建立了压应变自由悬膜形状的平衡相图。对于小的应变梯度Δ ε，薄膜起皱，而对于足够大的Δ ε，发生从起皱到弯曲的相变。我们考虑竞争松弛机制自由悬挂的电影，这已经卷起成管结构，我们提供了一个上限的最大可实现的管旋转数。
An equilibrium phase diagram for the shape of compressively strained free-hanging films is developed by total strain energy minimization. For small strain gradients Delta epsilon, the film wrinkles, while for sufficiently large Delta epsilon, a phase transition from wrinkling to bending occurs. We consider competing relaxation mechanisms for free-hanging films, which have rolled up into tube structures, and we provide an upper limit for the maximum achievable number of tube rotations.