Fig. 4: Experiments.
From: Self-bridging metamaterials surpassing the theoretical limit of Poisson’s ratios
a–c Samples of designed metamaterials and snapshots of the deformation patterns for non-reciprocal (Supplementary Video 1), ultra-large (Supplementary Video 2), and step-like (Supplementary Video 3) Poisson’s ratios, respectively. d Experiments about non-reciprocity under transverse and longitudinal loads. The structure is supported by rollers that are compressed using an aluminum alloy plate. In Fig. a–c, undeformed samples have the same scale bar of 50 mm, and the deformed samples have the same scale bar of 20 mm. In Fig. 4d, the scale bar of 20 mm applies to all structures.
