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Instant fabrication and selection of folded structures using drop impact.

ABSTRACT: A drop impacting a target cutout in a thin polymer film is wrapped by the film in a dynamic sequence involving both capillary forces and inertia. Different 3D structures can be produced from a given target by slightly varying the impact parameters. A simplified model for a nonlinear dynamic Elastica coupled with a drop successfully explains this shape selection and yields detailed quantitative agreement with experiments. This first venture into the largely unexplored dynamics of elastocapillary assemblies opens up the perspective of mass production of 3D packages with individual shape selection.

SUBMITTER: Antkowiak A

PROVIDER: S-EPMC3127932 | biostudies-literature | 2011 Jun

REPOSITORIES: biostudies-literature

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Instant fabrication and selection of folded structures using drop impact.

Antkowiak Arnaud A Audoly Basile B Josserand Christophe C Neukirch Sébastien S Rivetti Marco M

Proceedings of the National Academy of Sciences of the United States of America 20110613 26

A drop impacting a target cutout in a thin polymer film is wrapped by the film in a dynamic sequence involving both capillary forces and inertia. Different 3D structures can be produced from a given target by slightly varying the impact parameters. A simplified model for a nonlinear dynamic Elastica coupled with a drop successfully explains this shape selection and yields detailed quantitative agreement with experiments. This first venture into the largely unexplored dynamics of elastocapillary ...[more]

PMID: 21670249

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