Wrinkling hierarchy in constrained thin sheets from suspended graphene to curtains

Details Wrinkling hierarchy in constrained thin sheets from suspended graphene to curtains Wrinkling hierarchy in constrained thin sheets from suspended graphene to curtains

2010-12-20

arxiv.org/abs/1012.4325v2

Phys. Rev. Lett. 106, 224301 (2011)

Physics

Condensed Matter

Materials Science

7 pages, 4 figures, added references, submitted for publication

Scientific paper

10.1103/PhysRevLett.106.224301

We show that thin sheets under boundary confinement spontaneously generate a universal self-similar hierarchy of wrinkles. From simple geometry arguments and energy scalings, we develop a formalism based on wrinklons, the transition zone in the merging of two wrinkles, as building-blocks of the global pattern. Contrary to the case of crumple paper where elastic energy is focused, this transition is described as smooth in agreement with a recent numerical work. This formalism is validated from hundreds of nm for graphene sheets to meters for ordinary curtains, which shows the universality of our description. We finally describe the effect of an external tension to the distribution of the wrinkles.

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