2021 article
3D Transformable Modular Kirigami Based Programmable Metamaterials
Li, Y., Zhang, Q., Hong, Y., & Yin, J. (2021, July 29). ADVANCED FUNCTIONAL MATERIALS.
Abstract Kirigami, the ancient paper art of cutting, has recently emerged as a new approach to construct metamaterials with novel properties imparted by cuts. However, most studies are limited to thin sheetsâbased 2D kirigami metamaterials with specific forms and limited reconfigurability due to planar connection constraints of cut units. Here, 3D modular kirigami is introduced by cutting bulk materials into spatially closedâloop connected cut cubes to construct a new class of 3D kirigami metamaterials. The module is transformable with multiple degrees of freedom that can transform into versatile distinct daughter building blocks. Their conformable assembly creates a wealth of reconfigurable and disassemblable metamaterials with diverse structures and unique properties, including reconfigurable 1D columnâlike materials, 2D latticeâlike metamaterials with phase transition of chirality, as well as 3D frustrationâfree multilayered metamaterials with 3D auxetic behaviors and programmable deformation modes. This study largely expands the design space of kirigami metamaterials from 2D to 3D.