Kirigami-Inspired Inflatables with Programmable Shapes
Kirigami-Inspired Inflatables with Programmable Shapes
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DOI：
10.1002/adma.202001863
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发表时间：
2020-07-06
影响因子：
29.4
通讯作者：
Bertoldi, Katia
中科院分区：
文献类型：
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作者：
Jin, Lishuai;Forte, Antonio Elia;Bertoldi, Katia
日本剪纸艺术Kirigami最近实现了可拉伸机械超材料的设计，这种材料可以通过将周期性切口阵列嵌入弹性片材中来轻松实现。在这里，kirigami原则被用来设计充气，可以模仿目标形状加压。该系统包括嵌入非结构化弹性膜中的kirigami片。首先，它示出的膨胀的形状可以通过调整的几何参数的kirigami图案控制。然后，通过应用一个简单的优化算法，最好的参数，使kirigami充气变换成一个家庭的目标形状在给定的压力被确定。此外，由于kirigami的镶嵌性质，它表明，我们可以选择性地操纵单个单元的参数，以允许在不同尺度的功能的再现，并最终使目标的更准确的模仿。
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.