Multistability of segmented rings by programming natural curvature
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Here, we introduce a concept of segmented rings with intrinsic multistability by programming the natural curvature of the rod segments. Guided by theoretical modeling, simulation, and experimental validation, we demonstrate that a segmented ring with a rectangular cross-section can exhibit up to six distinct planar stable states characterized by uniform bending in each segment. The segmented rings constitute what are probably the simplest elastic structural entities with multiple stable states, and they will serve to expand the application space of functional multistable structures.