变形
弯曲
刚度
平面(几何)
壳体(结构)
抗弯刚度
平面的
计算机科学
曲面(拓扑)
软机器人
高斯曲率
职位(财务)
几何学
人工智能
材料科学
机械工程
机器人
计算机图形学(图像)
数学
工程类
复合材料
曲率
财务
经济
作者
Tian Ming Gao,José Bico,Benoît Roman
出处
期刊:Science
[American Association for the Advancement of Science (AAAS)]
日期:2023-08-25
卷期号:381 (6660): 862-867
标识
DOI:10.1126/science.adi2997
摘要
On a flat map of the Earth, continents are inevitably distorted. Reciprocally, curving a plate simultaneously in two directions requires a modification of in-plane distances, as Gauss stated in his seminal theorem. Although emerging architectured materials with programmed in-plane distortions are capable of such shape morphing, an additional control of local bending is required to precisely set the final shape of the resulting three-dimensional surface. Inspired by bulliform cells in leaves of monocotyledon plants, we show how the internal structure of flat panels can be designed to program bending and in-plane distortions simultaneously when pressurized, leading to a targeted shell shape. These surfaces with controlled stiffness and fast actuation are manufactured using consumer-grade materials and open a route to large-scale shape-morphing robotics applications.
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