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Encoding of direct 4D printing of isotropic single-material system for double-curvature and multimodal morphing
- Source :
- Extreme Mech. Lett. 54 (2022) 101779
- Publication Year :
- 2022
-
Abstract
- The ability to morph flat sheets into complex 3D shapes is extremely useful for fast manufacturing and saving materials while also allowing volumetrically efficient storage and shipment and a functional use. Direct 4D printing is a compelling method to morph complex 3D shapes out of as-printed 2D plates. However, most direct 4D printing methods require multi-material systems involving costly machines. Moreover, most works have used an open-cell design for shape shifting by encoding a collection of 1D rib deformations, which cannot remain structurally stable. Here, we demonstrate the direct 4D printing of an isotropic single-material system to morph 2D continuous bilayer plates into doubly curved and multimodal 3D complex shapes whose geometry can also be locked after deployment. We develop an inverse-design algorithm that integrates extrusion-based 3D printing of a single-material system to directly morph a raw printed sheet into complex 3D geometries such as a doubly curved surface with shape locking. Furthermore, our inverse-design tool encodes the localized shape-memory anisotropy during the process, providing the processing conditions for a target 3D morphed geometry. Our approach could be used for conventional extrusion-based 3D printing for various applications including biomedical devices, deployable structures, smart textiles, and pop-up Kirigami structures.
- Subjects :
- Computer Science - Graphics
Subjects
Details
- Database :
- arXiv
- Journal :
- Extreme Mech. Lett. 54 (2022) 101779
- Publication Type :
- Report
- Accession number :
- edsarx.2205.02510
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.eml.2022.101779