论文标题
对超材料进行旋转：机械不相容性作为磁挫败感
Putting a spin on metamaterials: Mechanical incompatibility as magnetic frustration
论文作者
论文摘要
机械超材料为看似不可能的力学提供了一个有希望的平台。他们通常需要其基本构件不兼容，但是对其角色的全面理解仍然难以捉摸。依靠类比为铁磁和反铁磁二进制自旋相互作用，我们提出了一种通用方法，可以识别和分析任意构件的拓扑机械缺陷。我们强调了二维和三维超材料之间的差异，并显示拓扑缺陷如何以受控和非平凡的方式引导应力和菌株，并可以通过迄今未知的复杂机械响应来激发材料的设计。
Mechanical metamaterials present a promising platform for seemingly impossible mechanics. They often require incompatibility of their elementary building blocks, yet a comprehensive understanding of its role remains elusive. Relying on an analogy to ferromagnetic and antiferromagnetic binary spin interactions, we present a universal approach to identify and analyze topological mechanical defects for arbitrary building blocks. We underline differences between two- and three-dimensional metamaterials, and show how topological defects can steer stresses and strains in a controlled and non-trivial manner and can inspire the design of materials with hitherto unknown complex mechanical response.
