Programmable Design and Fabrication of 3D Variable–Stiffness Structure Based on Patterned Graphene‐Heating Network

The 3D variable–stiffness structure can realize shape programming, reconstruction, adaptation, and locking, therefore, it has a wide design creation space. Accurate local stiffness control is of considerable significance to the application structures although challenging. Herein, realization scheme based on patterned heating network introduced. laser-engraving 3D-printing technologies are combined obtain composed graphene-heating (PGHN) polylactic acid (PLA). proposed uses PGHN accurately PLA programmable fabrication structures. “torsional structure,” “hexagonal “spring” cases used elaborate designability, excellent deformation reconstruction capacity, reasonable load bearing capacity PGHN/PLA structure. A pneumatic disc, which as reference for studies structures, designed. Also, robot designed shape-locking function achieve multimode motion using single air source. potential applications in robots, wearable devices, deployable