Abstract
We create mechanical metamaterials whose response to uniaxial compression can be programmed by lateral confinement, allowing monotonic, nonmonotonic, and hysteretic behavior. These functionalities arise from a broken rotational symmetry which causes highly nonlinear coupling of deformations along the two primary axes of these metamaterials. We introduce a soft mechanism model which captures the programmable mechanics, and outline a general design strategy for confined mechanical metamaterials. Finally, we show how inhomogeneous confinement can be explored to create multistability and giant hysteresis.
- Received 15 July 2014
DOI:https://doi.org/10.1103/PhysRevLett.113.175503
© 2014 American Physical Society
Focus
Holey Rubber Slab Has Controllable Stiffness
Published 24 October 2014
Squeezing a holey rubber slab changes its stiffness over a wide range in the direction perpendicular to the squeeze.
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