Shape-morphing architected sheets with non-periodic cut patterns - Archive ouverte HAL
Journal Articles Soft Matter Year : 2018

Shape-morphing architected sheets with non-periodic cut patterns

Abstract

We investigate the out-of-plane shape morphing capability of single-material elastic sheets with architected cut patterns that result in arrays of tiles connected by flexible hinges. We demonstrate that a non-periodic cut pattern can cause a sheet to buckle into three-dimensional shapes, such as domes or patterns of wrinkles, when pulled at specific boundary points. These global buckling modes are observed in experiments and rationalized by an in-plane kinematic analysis that highlights the role of the geometric frustration arising from non-periodicity. The study focuses on elastic sheets, and is later extended to elastic-plastic materials to achieve shape retention. Our work illustrates a scalable route towards the fabrication of three-dimensional objects with nonzero Gaussian curvature from initially-flat sheets.
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Dates and versions

hal-02347567 , version 1 (09-11-2019)

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Paolo Celli, Connor Mcmahan, Brian Ramirez, Anton Bauhofer, Christina Naify, et al.. Shape-morphing architected sheets with non-periodic cut patterns. Soft Matter, 2018, 14 (48), pp.9744-9749. ⟨10.1039/c8sm02082e⟩. ⟨hal-02347567⟩
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