Programmable Mechanical Metamaterials
arXiv:1407.4273 · doi:10.1103/PhysRevLett.113.175503
Abstract
We create mechanical metamaterials whose response to uniaxial compression can be programmed by lateral confinement, allowing monotonic, non-monotonic and hysteretic behavior. These functionalities arise from a broken rotational symmetry which causes highly nonlinear coupling of deformations along the two primary axes of these metamaterials. We introduce a soft mechanism model which captures the programmable mechanics, and outline a general design strategy for confined mechanical metamaterials. Finally, we show how inhomogeneous confinement can be explored to create multi stability and giant hysteresis.
4 pages, 5 figures Please visit the website for Supplemental Material (movies): https://www.physics.leidenuniv.nl/florijn-publication
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