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arXiv · 2011.12867

Putting a spin on metamaterials: Mechanical incompatibility as magnetic frustration

Ben Pisanty·Erdal C. Oguz·Cristiano Nisoli·Yair Shokef
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Abstract

Mechanical metamaterials present a promising platform for seemingly impossible mechanics. They often require incompatibility of their elementary building blocks, yet a comprehensive understanding of its role remains elusive. Relying on an analogy to ferromagnetic and antiferromagnetic binary spin interactions, we present a universal approach to identify and analyze topological mechanical defects for arbitrary building blocks. We underline differences between two- and three-dimensional metamaterials, and show how topological defects can steer stresses and strains in a controlled and non-trivial manner and can inspire the design of materials with hitherto unknown complex mechanical response.

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Ben Pisanty, Erdal C. Oguz, Cristiano Nisoli, Yair Shokef. 2020-11-25. Putting a spin on metamaterials: Mechanical incompatibility as magnetic frustration. https://doi.org/10.21468/scipostphys.10.6.136

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