Kirigami‐Inspired Inflatables with Programmable Shapes
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Date
2020-08
Publication Type
Journal Article
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Abstract
Kirigami, the Japanese art of paper cutting, has recently enabled the design of stretchable mechanical metamaterials that can be easily realized by embedding arrays of periodic cuts into an elastic sheet. Here, kirigami principles are exploited to design inflatables that can mimic target shapes upon pressurization. The system comprises a kirigami sheet embedded into an unstructured elastomeric membrane. First, it is shown that the inflated shape can be controlled by tuning the geometric parameters of the kirigami pattern. Then, by applying a simple optimization algorithm, the best parameters that enable the kirigami inflatables to transform into a family of target shapes at a given pressure are identified. Furthermore, thanks to the tessellated nature of the kirigami, it is shown that we can selectively manipulate the parameters of the single units to allow the reproduction of features at different scales and ultimately enable a more accurate mimicking of the target. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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published
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Journal / series
Volume
32 (33)
Pages / Article No.
2001863
Publisher
Wiley
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Subject
Inverse design; Kirigami; Mechanical metamaterials; Programmable inflatables; Shape shifting
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Notes
Funding
174326 - Programmable Hybrid Architected Materials (SNF)