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Published December 28, 2018 | Supplemental Material + Submitted
Journal Article Open

Shape-morphing architected sheets with non-periodic cut patterns


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.

Additional Information

© 2018 The Royal Society of Chemistry. The article was received on 11 Oct 2018, accepted on 19 Nov 2018 and first published on 04 Dec 2018. This research was carried out at the California Institute of Technology and the Jet Propulsion Laboratory under a contract with the National Aeronautics and Space Administration, and funded through the President's and Director's Fund Program. This work is partially supported through the Foster and Coco Stanback Space Innovation Fund. P. C. wishes to thank D. Pasini of McGill University, A. Constantinescu of École Polytechnique, and members of C. D.'s research group for their input and suggestions. We also thank B. Dominguez of Caltech for his assistance during laser cutting. There are no conflicts to declare.

Attached Files

Submitted - 1806.10851.pdf

Supplemental Material - c8sm02082e1_si.pdf


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