.png){kind=icon}
返回
Shape Programming by Modulating Actuation over Hierarchical Length Scales
.png){kind=icon}
OA
AI
DOI：10.1002/adma.202004515.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Many active materials used in shape-morphing respond to an external stimulus by stretching or contracting along a director field. The programming of such actuators remains complex because of the single degree of freedom (the orientation) in local actuation. Here, texturing this field in zigzag patterns is shown to provide an extended family of biaxial active stretches out of an otherwise single uniaxial active deformation, opening a larger parameter space. By further modulating the zigzag patterns at the larger scale of the structure, its deployed shape can be controlled. This notion of texturing over hierarchical length scales follows geometrical principles, and is robust against changes in size and materials. The robustness of the approach is demonstrated by considering three different responsive materials: inextensible flat fabrics, channel-bearing elastomer (respectively, contracting and expanding perpendicularly to the director field when actuated pneumatically), and 3D-printed thermoplastic (composed of extruded filaments that contract when heated). It is shown that large-scale shape-morphing structures can be generated and that their geometry can be controlled with high accuracy.
Keyword:
actuation
homogenization
responsive materials
shape programming
surface patterning
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
26.8
论文数:
3.4W
被引数:
46.0W
机构
引用论文
Reconfigurable shape-morphing dielectric elastomers using spatially varying electric fields使用空间变化电场的可重构形状变形介电弹性体.png)
NATURE COMMUNICATIONSOAAI
NATURE COMMUNICATIONSIF15.7
OAAI分享收藏Playing an Action Video Game Reduces Gender Differences in Spatial Cognition玩动作视频游戏可减少空间认知中的性别差异
OAAI
OAAI分享收藏Thermally Driven Giant Bending of Liquid Crystal Elastomer Films with Hybrid AlignmentMACROMOLECULES
MACROMOLECULESIF5.2
PREAI
分享收藏
查看更多内容