Electrothermally controlled origami fabricated by 4D printing of continuous fiber-reinforced composites

Yaohui Wang, Haitao Ye, Jian He, Qi Ge () and Yi Xiong ()
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Yaohui Wang: Southern University of Science and Technology
Haitao Ye: Southern University of Science and Technology
Jian He: Southern University of Science and Technology
Qi Ge: Southern University of Science and Technology
Yi Xiong: Southern University of Science and Technology

Nature Communications, 2024, vol. 15, issue 1, 1-13

Abstract: Abstract Active origami capable of precise deployment control, enabling on-demand modulation of its properties, is highly desirable in multi-scenario and multi-task applications. While 4D printing with shape memory composites holds great promise to realize such active origami, it still faces challenges such as low load-bearing capacity and limited transformable states. Here, we report a fabrication-design-actuation method of precisely controlled electrothermal origami with excellent mechanical performance and spatiotemporal controllability, utilizing 4D printing of continuous fiber-reinforced composites. The incorporation of continuous carbon fibers empowers electrothermal origami with a controllable actuation process via Joule heating, increased actuation force through improved heat conduction, and enhanced mechanical properties as a result of reinforcement. By modeling the multi-physical and highly nonlinear deploying process, we attain precise control over the active origami, allowing it to be reconfigured and locked into any desired configuration by manipulating activation parameters. Furthermore, we showcase the versatility of electrothermal origami by constructing reconfigurable robots, customizable architected materials, and programmable wings, which broadens the practical engineering applications of origami.

Date: 2024
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DOI: 10.1038/s41467-024-46591-3

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