On‐demand Reprogrammable Mechanical Metamaterial Driven by Structure Performance Relations (Adv. Mater. 9/2025)

Mechanical Metamaterial In article number 2410865, Fei Pan, Yuli Chen, and co-workers propose an automatically on-demand reprogrammable mechanical metamaterial. Driven by the pre-established structure-performance relations, the metamaterial can automatically tune its building blocks' states using built-in actuators to match different target stress-strain curves in real time. This offers a new solution for the physical properties reprogramming of artificial systems.