Origami Mechanical Metamaterials
In addition to making beautiful art, folding 2D materials can be used to tune mechanical properties and create novel three-dimensional structures. Because the mathematical description of origami is scale-free, folding principles can be applied to materials over a vast range of spatial scales.
Drawing on the art of origami to inspire mechanical metamaterials relies on the ability to extract useful design principles from crease patterns. One particularly interesting pattern is the square twist. Not ony is it tessellatable, but the unit highlighted below has some surprsing properties.