Applied Mathematics and Mechanics (English Edition) ›› 2022, Vol. 43 ›› Issue (2): 167-184.doi: https://doi.org/10.1007/s10483-021-2808-9

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Tunable three-dimensional nonreciprocal transmission in a layered nonlinear elastic wave metamaterial by initial stresses

Zhenni LI1, Yize WANG2, Yuesheng WANG1,2   

  1. 1. Institute of Engineering Mechanics, Beijing Jiaotong University, Beijing 100044, China;
    2. Department of Mechanics, Tianjin University, Tianjin 300350, China
  • Received:2021-03-05 Revised:2021-11-15 Published:2022-01-25
  • Contact: Yize WANG, E-mail:wangyize@tju.edu.cn;Yuesheng WANG, E-mail:yswang@tju.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Nos.11922209, 11991031, and 12021002)

Abstract: In this work, the three-dimensional (3D) propagation behaviors in the nonlinear phononic crystal and elastic wave metamaterial with initial stresses are investigated. The analytical solutions of the fundamental wave and second harmonic with the quasi-longitudinal (qP) and quasi-shear (qS1 and qS2) modes are derived. Based on the transfer and stiffness matrices, band gaps with initial stresses are obtained by the Bloch theorem. The transmission coefficients are calculated to support the band gap property, and the tunability of the nonreciprocal transmission by the initial stress is discussed. This work is expected to provide a way to tune the nonreciprocal transmission with vector characteristics.

Key words: nonlinear elastic wave metamaterial, nonreciprocal transmission, threedimensional (3D) elastic wave, initial stress

2010 MSC Number: 

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