Study of In-Plane Wave Propagation in 2-Dimensional Anisotropic Elastic Metamaterials
Study of In-Plane Wave Propagation in 2-Dimensional Anisotropic Elastic Metamaterials
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DOI：
10.1007/s42417-018-0076-6
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发表时间：
2019-02
影响因子：
2.7
通讯作者：
Sheng Sang;E. Sandgren
中科院分区：
文献类型：
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作者：
Sheng Sang;E. Sandgren
目的弹性超材料由于其广泛的应用，引起了研究人员的极大兴趣。本文对具有各向异性密度和各向异性杨氏模量的二维各向异性超材料中的平面波传播进行了全面研究。方法给出了不同负性组合的二维超材料中波的传播特性，并对这种非自然现象进行了解释。基于Snell定律和焊缝边界条件，分析了波从传统各向同性材料向各向异性超材料传播的过程。意义本文为今后各向同性和各向异性超材料的大规模建模和模拟研究奠定了基础。
ObjectiveDue to its multiple applications, elastic metamaterial is of great interest for researchers today. In this article, in-plane wave propagation in 2-D anisotropic metamateials with anisotropic density and anisotropic Young’s modulus is comprehensively studied.MethodCharacteristics of wave propagation in 2-D metamaterial with different combinations of negative properties are provided, and the unnatural phenomenon is also explained. Based on Snell’s law and weld boundary condition, analysis of wave propagation from conventional isotropic material into anisotropic metamaterial is performed.SignificanceThis paper can serve as a foundation for future study of massive modeling and simulation of both isotropic and anisotropic metamaterials.