Morphable 3D mesostructures and microelectronic devices by multistable buckling mechanics
Fu Haoran,Kewang Nan,Wubin Bai,Wen Huang,Ke Bai,Luyao Lu,Chaoqun Zhou,Yunpeng Liu,Fei Liu,Juntong Wang,Mengdi Han,Zheng Yan,Haiwen Luan,Yijie Zhang,Yutong Zhang,Jianing Zhao,Xu Cheng,Moyang Li,Jung Woo Lee,Yuan Liu,Daining Fang,Xiuling Li,Yonggang Huang,Yihui Zhang,John A. Rogers +24 more
TLDR
A set of concepts for morphable 3D mesostructures in diverse materials and fully formed planar devices spanning length scales from micrometres to millimetres is introduced.Abstract:
Three-dimensional (3D) structures capable of reversible transformations in their geometrical layouts have important applications across a broad range of areas. Most morphable 3D systems rely on concepts inspired by origami/kirigami or techniques of 3D printing with responsive materials. The development of schemes that can simultaneously apply across a wide range of size scales and with classes of advanced materials found in state-of-the-art microsystem technologies remains challenging. Here, we introduce a set of concepts for morphable 3D mesostructures in diverse materials and fully formed planar devices spanning length scales from micrometres to millimetres. The approaches rely on elastomer platforms deformed in different time sequences to elastically alter the 3D geometries of supported mesostructures via nonlinear mechanical buckling. Over 20 examples have been experimentally and theoretically investigated, including mesostructures that can be reshaped between different geometries as well as those that can morph into three or more distinct states. An adaptive radiofrequency circuit and a concealable electromagnetic device provide examples of functionally reconfigurable microelectronic devices.read more
Citations
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Printing ferromagnetic domains for untethered fast-transforming soft materials
TL;DR: 3D printing of programmed ferromagnetic domains in soft materials that enable fast transformations between complex 3D shapes via magnetic actuation are reported, enabling a set of previously inaccessible modes of transformation, such as remotely controlled auxetic behaviours of mechanical metamaterials with negative Poisson’s ratios.
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Advances in 4D Printing: Materials and Applications
Xiao Kuang,Devin J. Roach,Jiangtao Wu,Craig M. Hamel,Zhen Ding,Tiejun Wang,Martin L. Dunn,Hang Jerry Qi +7 more
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High-performance stretchable conductive nanocomposites: materials, processes, and device applications
TL;DR: The recent advances in stretchable conductors based on the percolation networks of nanoscale conductive fillers in elastomeric media are summarized and various techniques that are used to reduce the contact resistance between the conductive filler materials are highlighted.
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Mechanical design and multifunctional applications of chiral mechanical metamaterials: A review
TL;DR: In this paper, a review of 2D and 3D chiral mechanical metamaterials is presented, and their mechanical behaviors and deformation mechanisms can be investigated through equilibrium principle, strain energy analysis, micropolar elasticity and homogenization theories.
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Magnetic Shape Memory Polymers with Integrated Multifunctional Shape Manipulation.
Qiji Ze,Xiao Kuang,Shuai Wu,Janet Wong,S. Macrae Montgomery,Rundong Zhang,Joshua M. Kovitz,Fengyuan Yang,H. Jerry Qi,Ruike Zhao +9 more
TL;DR: In this paper, a magnetic shape memory polymer composite is reported to achieve multiple shape manipulations in one material system, including reprogrammable, untethered, fast, and reversible shape transformation and locking.
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