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Title: Reprogrammable and reconfigurable mechanical computing metastructures with stable and high-density memory
Mechanical computing encodes information in deformed states of mechanical systems, such as multistable structures. However, achieving stable mechanical memory in most multistable systems remains challenging and often limited to binary information. Here, we report leveraging coupling kinematic bifurcation in rigid cube–based mechanisms with elasticity to create transformable, multistable mechanical computing metastructures with stable, high-density mechanical memory. Simply stretching the planar metastructure forms a multistable corrugated platform. It allows for independent mechanical or magnetic actuation of individual bistable element, serving as pop-up voxels for display or binary units for various tasks such as information writing, erasing, reading, encryption, and mechanologic computing. Releasing the pre-stretched strain stabilizes the prescribed information, resistant to external mechanical or magnetic perturbations, whereas re-stretching enables editable mechanical memory, akin to selective zones or disk formatting for information erasure and rewriting. Moreover, the platform can be reprogrammed and transformed into a multilayer configuration to achieve high-density memory.  more » « less
Award ID(s):
2231419 2005374 2126072
PAR ID:
10529863
Author(s) / Creator(s):
; ; ; ; ; ; ;
Publisher / Repository:
Science
Date Published:
Journal Name:
Science Advances
Volume:
10
Issue:
26
ISSN:
2375-2548
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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