Vibrant times for mechanical metamaterials
Vibrant times for mechanical metamaterials
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DOI：
10.1557/mrc.2015.51
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发表时间：
2015-09-01
影响因子：
1.9
通讯作者：
Wegener, Martin
中科院分区：
文献类型：
--
作者：
Christensen, Johan;Kadic, Muamer;Wegener, Martin
超材料是人工设计的物质，它通过结构而不是化学来获得其不同寻常的有效性质。在电磁和声学超材料取得成功的基础上，研究机械超材料的研究人员致力于获得特殊或极端的弹性张量和质量密度张量，从而以前所未有的方式塑造静态应力场或纵向/横向弹性振动的流动。在这篇前瞻性的论文中，我们将重点介绍这一新兴领域的最新进展和仍然存在的挑战。例如超轻、负质量密度、负模数、五模、各向异性质量密度、折纸、非线性、双稳态和可重新编程的机械超材料。
Metamaterials are man-made designer matter that obtains its unusual effective properties by structure rather than chemistry. Building upon the success of electromagnetic and acoustic metamaterials, researchers working on mechanical metamaterials strive at obtaining extraordinary or extreme elasticity tensors and mass-density tensors to thereby mold static stress fields or the flow of longitudinal/transverse elastic vibrations in unprecedented ways. In this prospective paper, we focus on recent advances and remaining challenges in this emerging field. Examples are ultralight-weight, negative mass density, negative modulus, pentamode, anisotropic mass density, Origami, nonlinear, bistable, and reprogrammable mechanical metamaterials.