If the Poisson’s ratio of the material if positive, then tensile/compressive strains in the x-direction produce compressive/tensile strains in the y- and z-directions, as shown below. Negative Poisson ...

Figure 1: Design concept and schematic fabrication process of the impact-buffered structural electrodes. (a) Advantages of NPR-structural electrodes compared to the thin film structure and mesh ...

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Researchers have discovered a mechanism with a counterintuitive response: it becomes smaller when pulled. This rare behavior, known as a negative Poisson’s ratio, defies the way most natural materials ...