Reprogrammable and reconfigurable mechanical computing metastructures with stable and high-density memory

• DOI: 10.1126/sciadv.ado6476
• Publication Date: 2024-06-26T18:00:22Z
• Authors: Yanbin Li; Shuangyue Yu; Haitao Qing; Yaoye Hong; Yao Zhao; Fangjie Qi; Hao Su; Jie Yin
• Keywords: Bistability

Mechanical computing encodes information in deformed states of mechanical systems, such as multistable structures. However, achieving stable memory most systems remains challenging and often limited to binary information. Here, we report leveraging coupling kinematic bifurcation rigid cube-based mechanisms with elasticity create transformable, metastructures stable, high-density memory. Simply stretching the planar metastructure forms a corrugated platform. It allows for independent or magnetic actuation individual bistable element, serving pop-up voxels display units various tasks writing, erasing, reading, encryption, mechanologic computing. Releasing pre-stretched strain stabilizes prescribed information, resistant external perturbations, whereas re-stretching enables editable memory, akin selective zones disk formatting erasure rewriting. Moreover, platform can be reprogrammed transformed into multilayer configuration achieve