论文标题
模块化折纸启发的机械超材料
A Modular Origami-inspired Mechanical Metamaterial
论文作者
论文摘要
具有复杂微观结构的机械超材料具有出色的物理特性，例如分级刚度，负泊松比和能量吸收的优势。近年来，折纸在超材料的几何结构中提供了许多灵感。在这里，我们提出了一个模块化折纸灵感的可重新配置的超材料。我们的方法利用了一个可转换的模块由Sarrus链接和平面四杆链接组成，并且按照镶嵌模式连接模块以形成周期性结构。讨论了超材料的不同排列，模块形状和网格模式，并通过实验分析了负载能力和刚度变化。所提出的材料可用于实现可重构的结构或架构在较大的长度尺度上。
Mechanical metamaterials with complex microstructures have superior physical properties such as graded stiffness, negative Poisson's ratio, and advantage in energy absorption. In recent years, origami provide many inspirations in the geometry structure of the metamaterials. Here we present a modular origami inspired reconfigurable metamaterial. Our approach exploits a transformable module consisted of the Sarrus linkage and planar four-bar linkage, and the modules are connected following a tessellation pattern to form a periodic structure. Different arrangements, module shapes and grid pattern of the metamaterial are discussed, and the loading capacity and stiffness variation are analysed experimentally. The proposed material can be used to realize reconfigurable structures or architectures over a wide range of length scales.
