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arXiv 2012.09567cond-mat.soft
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一种模块化折纸机械超材料

A Modular Origami-inspired Mechanical Metamaterial

Yunfang Yang, Zhong You

摘要:

具有复杂微结构的机械超材料具有梯度刚度、负泊松比和能量吸收等优良的物理特性。近年来,折纸术在超材料的几何结构方面提供了许多启示。在这里,我们提出了一个模块化的折纸启发可重构超材料。该方法利用由Sarrus连杆机构和平面四杆机构组成的可变换模块,并将模块按照镶嵌图案连接以形成周期性结构。讨论了异向介质的不同排列方式、不同模量形状和不同网格形式,并对异向介质的承载能力和刚度变化进行了实验分析。所提出的材料可用于在宽范围的长度尺度上实现可重构结构或架构。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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