Reconfigurable mechanism-based metamaterials for ternary-coded elastic wave polarizers and programmable refraction control

作     者：Zhou HU Zhibo WEI Yan CHEN Rui ZHU Zhou HU;Zhibo WEI;Yan CHEN;Rui ZHU

作者机构：School of Aerospace EngineeringBeijing Institute of TechnologyBeijing100081China School of Mechanical EngineeringTianjin UniversityTianjin300350China Key Laboratory of Mechanism Theory and Equipment Design of Ministry of EducationTianjin UniversityTianjin300350China 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2024年第45卷第7期

页      面：1225-1242页

核心收录：

学科分类：08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0701[理学-数学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Key R&D Program of China(No.2021YFE0110900) the National Natural Science Foundation of China(Nos.U22B2078 and 11991033) 

主　　题：elastic metamaterial elastic wave reconfigurable design zero mode ternary code programmable refraction 

摘      要：Elastic metamaterials with unusual elastic properties offer unprecedented ways to modulate the polarization and propagation of elastic ***,most of them rely on the resonant structural components,and thus are frequency-dependent and ***,we present a reconfigurable 2D mechanism-based metamaterial which possesses transformable and frequency-independent elastic *** on the proposed mechanism-based metamaterial,interesting functionalities,such as ternarycoded elastic wave polarizer and programmable refraction,are ***,unique ternary-coded polarizers,with 1-trit polarization filtering and 2-trit polarization separating of longitudinal and transverse waves,are first ***,the strong anisotropy of the proposed metamaterial is harnessed to realize positive-negative bi-refraction,only-positive refraction,and only-negative ***,the wave functions with detailed microstructures are numerically verified.