Bulletin of the American Physical Society
71st Annual Meeting of the APS Division of Fluid Dynamics
Volume 63, Number 13
Sunday–Tuesday, November 18–20, 2018; Atlanta, Georgia
Session F13: Drops: Elastic Surfaces and Fibers
8:00 AM–10:10 AM,
Monday, November 19, 2018
Georgia World Congress Center Room: B218
Chair: Dominic Vella, University of Oxford
Abstract ID: BAPS.2018.DFD.F13.10
Abstract: F13.00010 : Knitting with fluids: architected elastic structures formed by capillary flow in Hele-Shaw cell.
9:57 AM–10:10 AM
We propose a methodology to fabricate 2D elastic networks using the rules and tools of fluid mechanics. Our approach consists in pouring a polymeric solution on top of a Hele-Shaw cell, whose top wall presents a series of holes. Owing to capillary forces, the fluid invades the cell and spreads in a pattern defined by the location of the holes. Eventually, the polymer cures and freezes the flow in a 2D elastic material. Depending on the position and the distance between the holes, connected networks of cellular structures or architectured structures of connected polygons can be easily fabricated. We study this problem theoretically to rationalize the composition and geometry of the myriad structures we observe in our experiments.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.DFD.F13.10
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