Mechanical memories in solids, from disorder to design

JD Paulsen, NC Keim - Annual Review of Condensed Matter …, 2024 - annualreviews.org
Solids are rigid, which means that when left undisturbed, their structures are nearly static. It
follows that these structures depend on history—but it is surprising that they hold readable …

In-memory mechanical computing

T Mei, CQ Chen - Nature Communications, 2023 - nature.com
Mechanical computing requires matter to adapt behavior according to retained knowledge,
often through integrated sensing, actuation, and control of deformation. However, inefficient …

Harnessing plasticity in sequential metamaterials for ideal shock absorption

W Liu, S Janbaz, D Dykstra, B Ennis, C Coulais - Nature, 2024 - nature.com
Mechanical metamaterials exhibit interesting properties such as high stiffness at low density,–
, enhanced energy absorption,, shape morphing,–, sequential deformations,,–, auxeticity …

Intelligent electroactive material systems with self-adaptive mechanical memory and sequential logic

C El Helou, LP Hyatt, PR Buskohl… - Proceedings of the …, 2024 - National Acad Sciences
By synthesizing the requisite functionalities of intelligence in an integrated material system, it
may become possible to animate otherwise inanimate matter. A significant challenge in this …

Contrastive learning through non-equilibrium memory

M Falk, A Strupp, B Scellier, A Murugan - arXiv preprint arXiv:2312.17723, 2023 - arxiv.org
Learning algorithms based on backpropagation have enabled transformative technological
advances but alternatives based on local energy-based rules offer benefits in terms of …

Bifurcations of inflating balloons and interacting hysterons

G Muhaxheri, CD Santangelo - Physical Review E, 2024 - APS
While many materials exhibit a complex, hysteretic response to external driving, there has
been a surge of interest in how the complex dynamics of internal materials states can be …

Emergent disorder and mechanical memory in periodic metamaterials

C Sirote-Katz, D Shohat, C Merrigan, Y Lahini… - Nature …, 2024 - nature.com
Ordered mechanical systems typically have one or only a few stable rest configurations, and
hence are not considered useful for encoding memory. Multistable and history-dependent …

Controlled pathways and sequential information processing in serially coupled mechanical hysterons

J Liu, M Teunisse, G Korovin… - Proceedings of the …, 2024 - National Acad Sciences
The complex sequential response of frustrated materials results from the interactions
between material bits called hysterons. Hence, a central challenge is to understand and …

Mechanical-computing metastructure for self-powered vibration sensing

H Pan, J Zhou, K Wang, Q Wang, D Tan - Nano Energy, 2024 - Elsevier
Triboelectric nanogenerator-based vibration sensors (TVSs) present a promising approach
for online vibration monitoring, offering early detection of excessive vibrations that pose risks …

Embedded Fluidic Sensing and Control with Soft Open‐Cell Foams

A Rajappan, Z Liu, TF Yap… - Advanced Functional …, 2024 - Wiley Online Library
The synthesis of soft matter intelligence with circuit‐driven logic has enabled a new class of
robots that perform complex tasks or conform to specialized form factors in unique ways that …