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Diffusive kinks turn kirigami into machines

Engineering and Technology

Diffusive kinks turn kirigami into machines

S. Janbaz and C. Coulais

Discover how Shahram Janbaz and Corentin Coulais have tapped into the fascinating world of kirigami to create shape-shifting structures inspired by nature. Their groundbreaking research delves into the dynamics of propagating kinks, showcasing innovative applications in sensing and object manipulation, reminiscent of the snapping movements of the *Mimosa Pudica*. A leap towards machine-like functionalities through the art of folding and elasticity awaits your exploration!

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Playback language: English
Abstract
This paper explores the emergence of propagating kinks in purely dissipative kirigami, leveraging viscoelasticity to achieve shape-changing functionalities. By creating kirigami that changes shape depending on stretching speed, the authors observe a snapping instability leading to a propagating diffusive kink, mimicking biological systems like *Mimosa Pudica*. This diffusive kink is then harnessed for sensing, dynamic shape morphing, object transport, and manipulation, demonstrating the potential of kirigami as a platform for basic machine-like functionalities.
Publisher
Nature Communications
Published On
Feb 10, 2024
Authors
Shahram Janbaz, Corentin Coulais
Tags
kirigami
viscoelasticity
shape-changing
propagating kink
sensing
dynamic morphing
object manipulation

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