论文标题
寡聚机械超材料
Oligomodal mechanical metamaterials
论文作者
论文摘要
机械超材料是人工复合材料，表现出各种高级功能，例如负泊松的比率，形状转移，拓扑保护，多稳定性和增强的能量耗散。迄今为止，大多数超材料都有一个单一的财产，例如单个形状会改变，或者是多能的，\ emph {i.e。}它们可以具有许多不同的响应，但需要复杂的驱动协议。在这里，我们介绍了一类新型的寡聚地材料，该寡素质超材料编码一些可以在单轴压缩下选择性控制的不同特性。特别是，我们意识到一种超材料，该材料具有负（高）压缩率的负（阳性）泊松比。我们的寡聚物质材料在单个结构中托管多个机械响应的能力使它们成为了多功能物质的早期例子，并为朝着健壮和适应性设备铺平了道路。
Mechanical metamaterials are artifical composites that exhibit a wide range of advanced functionalities such as negative Poisson's ratio, shape-shifting, topological protection, multistability, and enhanced energy dissipation. To date, most metamaterials have a single property, e.g. a single shape change, or are pluripotent, \emph{i.e.} they can have many different responses, but require complex actuation protocols. Here, we introduce a novel class of oligomodal metamaterials that encode a few distinct properties that can be selectively controlled under uniaxial compression. In particular, we realise a metamaterial that has a negative (positive) Poisson's ratio for low (high) compression rate. The ability of our oligomodal metamaterials to host multiple mechanical responses within a single structure makes them an early example of multi-functional matter and paves the way towards robust and adaptable devices.
