Ring Origami: Snap-Folding of Rings with Different Geometries

Motivated by the large area change and the self-guided deformation through snap-folding of the rings, this work introduces ring origami assemblies with unprecedented packing ratios. Snap-folding of ring with different geometries (circular, elliptical, rounded rectangular, and rounded triangular shapes) enlarge the design space of ring origami assemblies for foldable electronics and shape-reconfigurable and deployable structures.