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.
@article{arxiv.1407.4273,
title = {Programmable Mechanical Metamaterials},
author = {Bastiaan Florijn and Corentin Coulais and Martin van Hecke},
journal= {arXiv preprint arXiv:1407.4273},
year = {2015}
}
Comments
4 pages, 5 figures Please visit the website for Supplemental Material (movies): https://www.physics.leidenuniv.nl/florijn-publication