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Jiayao Ma, Shixi Zang, Yan Chen, Zhong You
Engineering 2022, Volume 17, Issue 10, Pages 82-92 doi: 10.1016/j.eng.2022.02.015
Metamaterials constructed from origami units of different types and behaviors could potentially offer a broader scope of mechanical properties than those formed from identical unit types. However, the geometric design rules and property programming methods for such metamaterials have yet to be extensively explored. In this paper, we propose a new kind of origami metasheet by incorporating a family of different square-twist units. The tessellation rule of these metasheets is established to allow compatible mountain–valley crease assignments and geometric parameters among neighboring units. We demonstrate through experiments that the energy, initial peak force, and maximum stiffness of the metasheets can be obtained by a summation of the properties of the constitutional units. Based on this, we are able to program the mechanical properties of the metasheets over a wide range by varying the types and proportions of the units, as well as their geometric and material parameters. Furthermore, for a metasheet with a fixed number of units, all the geometrically compatible tessellations can be folded out of the same pre-creased sheet material by simply changing the mountain–valley assignments, thereby allowing the properties of the metasheet to be re-programmed based on specific requirements. This work could inspire a new class of programmable origami metamaterials for current and future mechanical and other engineering applications.
Keywords: Origami metamaterials Metasheets Square-twist pattern Non-periodic tessellation Programmability
Programming bare-metal accelerators with heterogeneous threading models: a case study of Matrix-3000 Research Article
Jianbin FANG, Peng ZHANG, Chun HUANG, Tao TANG, Kai LU, Ruibo WANG, Zheng WANG,j.fang@nudt.edu.cn,zhangpeng13a@nudt.edu.cn,chunhuang@nudt.edu.cn
Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 4, Pages 509-520 doi: 10.1631/FITEE.2200359
Keywords: Heterogeneous computing Parallel programming models Programmability Compilers Runtime systems
Title Author Date Type Operation
The Tessellation Rule and Properties Programming of Origami Metasheets Built with a Mixture of Rigid and Non-Rigid Square-Twist Patterns
Jiayao Ma, Shixi Zang, Yan Chen, Zhong You
Journal Article