Journal or Book Title
Physics Review Letters
An ultrathin polymer sheet floating on a fluid forms a periodic pattern of parallel wrinkles when subjected to uniaxial compression. The wave number of the wrinkle pattern increases sharply near the fluid meniscus where the translational symmetry of this one-dimensional corrugated profile is broken. We show that the observed multiscale morphology is controlled by a new “softness” number that quantifies the relative strength of capillary forces at the edge and the rigidity of the bulk pattern. We discover a new elastic cascade by which the wrinkling pattern in the bulk is smoothly matched to the fine structure at the edge by a discrete series of higher Fourier modes.
Huang, J; Davidovitch, B; Santangelo, C; Russell, T; and Menon, N, "Smooth Cascade of Wrinkles at the Edge of a Floating Elastic Film" (2010). Physics Review Letters. 1104.
Retrieved from https://scholarworks.umass.edu/physics_faculty_pubs/1104