Acta Mechanica Solida Sinica

, Volume 21, Issue 6, pp 529–535 | Cite as

Wave localization in randomly disordered periodic piezoelectric rods with initial stress

  • Yize Wang
  • Fengming Li
  • Kikuo Kishimoto
  • Yuesheng Wang
  • Wenhu Huang
Article

Abstract

The elastic wave localization in disordered periodic piezoelectric rods with initial stress is studied using the transfer matrix and Lyapunov exponent method. The electric field is approximated as quasi-static. The effects of the initial stress on the band gap characteristics are investigated. The numerical calculations of localization factors and localization lengths are performed. It can be observed from the results that the band structures can be tuned by exerting the suitable initial stress. For different values of the piezoelectric rod length and the elastic constant, the band structures and the localization phenomena are very different. Larger disorder degree can lead to more obvious localization phenomenon.

Key words

piezoelectric phononic crystal initial stress random disorder localization factor localization length 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2008

Authors and Affiliations

  • Yize Wang
    • 1
  • Fengming Li
    • 1
    • 2
  • Kikuo Kishimoto
    • 2
  • Yuesheng Wang
    • 3
  • Wenhu Huang
    • 1
  1. 1.School of AstronauticsHarbin Institute of TechnologyHarbinChina
  2. 2.Department of Mechanical Sciences and EngineeringTokyo Institute of TechnologyTokyoJapan
  3. 3.Institute of Engineering MechanicsBeijing Jiaotong UniversityBeijingChina

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