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Award ID contains: 2318680

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  1. ; ; ; ; ; ; ; (, Nature Physics)
    Free, publicly-accessible full text available April 4, 2026
  2. ; ; ; (, Physical Review Letters)
    A buckled sheet offers a reservoir of material that can be unfurled at a later time. For sufficiently thin yet stiff materials, this geometric process has a striking mechanical feature: when the slack runs out, the material locks to further extension. Here, we establish a simple route to a tunable locking material: a system with an interval where it is freely deformable under a given deformation mode, and where the endpoints of this interval can be changed continuously over a wide range. We demonstrate this type of mechanical response in a thin sheet formed into a cylindrical shell and subjected to axial twist and compression, and we rationalize our results with a simple geometric model. 
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