Corrugated plastic inspires a new design principle for programmable materials

https://techxplore.com/news/2023-09-corrugated-plastic-principle-programmable-materials.html

"stable and can be reshaped... buckled groove functions as a defect, and that neighboring defects detect each other: if you bring them closer, they repel... ridges exist of chains of defects that attract and lock each other into place... foldable emergency housing, medical devices (stents that enter body in one shape and fold open into another stable, useful shape, robot parts switch back and forth between programable shapes"