title: Ridge localizations and networks in thin films compressed by the incremental release of a large equi-biaxial pre-stretch in the substrate.
abstract: Two-dimensional ridge structures are induced by equi-biaxial compression with large equi-biaxial pre-stretch in a thin film by using a micro-fluidics technique. Whereas wrinkles tend to be uniformly distributed, ridges are localized. The wrinkle-to-ridge transition is unstable (subcritical), resulting in large amplitude changes. The nature and morphology of the ridges is studied and quantified by experiments and numerical simulations.
authors.affiliation: Institute of Industrial Science, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo, 153-8505, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Takei
authors.forename: Lihua
authors.initials: L
authors.lastname: Jin
authors.forename: John W
authors.initials: JW
authors.lastname: Hutchinson
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Fujita
keywords: buckling patterns; layered materials; microfluidics; ridge networks; soft matter; surfaces; thin films