Mechanics of large folds in thin interfacial films
arXiv:1407.4092 · doi:10.1103/PhysRevE.90.042401
Abstract
A thin film at a liquid interface responds to uniaxial confinement by wrinkling and then by folding; its shape and energy have been computed exactly before self contact. Here, we address the mechanics of large folds, i.e. folds that absorb a length much larger than the wrinkle wavelength. With scaling arguments and numerical simulations, we show that the antisymmetric fold is energetically favorable and can absorb any excess length at zero pressure. Then, motivated by puzzles arising in the comparison of this simple model to experiments on lipid monolayers and capillary rafts, we discuss how to incorporate film weight, self-adhesion and energy dissipation.
arXiv comment5 pages, 3 figures
References in corpus (7)
- Capillary origami: spontaneous wrapping of a droplet with an elastic sheet
- Elasticity of an interfacial particle raft
- Compression induced folding of a sheet: an integrable system
- Shape and symmetry of a fluid-supported elastic sheet
- Non-symmetric localized fold of a floating sheet
- Elasto-capillary meniscus: Pulling out a soft strip sticking to a liquid surface
- Anomalously fast kinetics of lipid monolayer buckling
Cited by in corpus (10)
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- Elastogranular Mechanics: Buckling, Jamming, and Structure Formation
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- The compression of a heavy floating elastic film
- Pattern transitions in a compressible floating elastic sheet
- Nonlinear buckling and symmetry breaking of a soft elastic sheet sliding on a cylindrical substrate
- Geometry underlies the mechanical stiffening and softening of an indented floating film
- Interplay of gross and fine structures in strongly-curved sheets
- Wrinkles, rucks, and folds formed in a heavy sheet on a frictional surface