Programmable Mechanical Metamaterials
Programmable Mechanical Metamaterials
复制标题
DOI：
10.1103/physrevlett.113.175503
复制
发表时间：
2014-10-24
影响因子：
8.6
通讯作者：
van Hecke, Martin
中科院分区：
文献类型：
--
作者：
Florijn, Bastiaan;Coulais, Corentin;van Hecke, Martin
我们创建的机械超材料，其单轴压缩的响应可以编程的横向限制，允许单调，非单调，滞后行为。这些功能产生于破坏的旋转对称性，其导致沿着这些超材料的两个主轴的变形的高度非线性耦合沿着。我们介绍了一个软机制模型，捕捉可编程力学，并概述了一般的设计策略，限制机械超材料。最后，我们展示了如何不均匀的限制，可以探索创造多稳定性和巨大的滞后。
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.