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In article number 1901258, Zhihua Zhao, Lihua Jin, and Kangjia Fu create a new type of granular metamaterial for reusable energy absorption by integrating rigid granular materials and compliant stretchable components. Input energy to the metamaterial is partially trapped as elastic energy in the stretchable components and partially dissipated by granular friction.
Designing metamaterials with programmable features has emerged as a promising pathway for reusable energy absorption. While the current designs of reusable energy absorbers mainly exploit mechanical instability of flexible beams, here is created a new kind of metamaterial for reusable and programmable energy absorption by integrating rigid granular materials and compliant stretchable components. In...
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