Applied Mathematics and Mechanics (English Edition) ›› 2018, Vol. 39 ›› Issue (9): 1259-1266.doi: https://doi.org/10.1007/s10483-018-2363-9

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Study on a straight dislocation in an icosahedral quasicrystal with piezoelectric effects

Lianhe LI1,2, Guanting LIU1   

  1. 1. College of Mathematics Science, Inner Mongolia Normal University, Huhhot 010022, China;
    2. Inner Mongolia Key Laboratory of Nanoscience and Nanotechnology, Inner Mongolia University, Huhhot 010021, China
  • 收稿日期:2018-01-04 修回日期:2018-03-07 出版日期:2018-09-01 发布日期:2018-09-01
  • 通讯作者: Lianhe LI E-mail:nmglilianhe@163.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Nos. 11462020 and 11502123) and the Natural Science Foundation of Inner Mongolia (Nos. 2017MS0104 and 2017ZRYB003)

Study on a straight dislocation in an icosahedral quasicrystal with piezoelectric effects

Lianhe LI1,2, Guanting LIU1   

  1. 1. College of Mathematics Science, Inner Mongolia Normal University, Huhhot 010022, China;
    2. Inner Mongolia Key Laboratory of Nanoscience and Nanotechnology, Inner Mongolia University, Huhhot 010021, China
  • Received:2018-01-04 Revised:2018-03-07 Online:2018-09-01 Published:2018-09-01
  • Contact: Lianhe LI E-mail:nmglilianhe@163.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Nos. 11462020 and 11502123) and the Natural Science Foundation of Inner Mongolia (Nos. 2017MS0104 and 2017ZRYB003)

摘要: An electro-elastic analysis is performed on an icosahedral quasicrystal with piezoelectric effects containing a straight dislocation. The closed-form expressions for the elastic and electric fields are obtained using the extended Stroh formalism. The effects of piezoelectric constant on the phonon displacement, phason displacement, and electric potential are discussed in detail.

关键词: boundary layer type problem, interpolation, singular perturbation method, dislocation, icosahedral quasicrystal, Stroh formalism, piezoelectric effect

Abstract: An electro-elastic analysis is performed on an icosahedral quasicrystal with piezoelectric effects containing a straight dislocation. The closed-form expressions for the elastic and electric fields are obtained using the extended Stroh formalism. The effects of piezoelectric constant on the phonon displacement, phason displacement, and electric potential are discussed in detail.

Key words: piezoelectric effect, boundary layer type problem, interpolation, singular perturbation method, icosahedral quasicrystal, dislocation, Stroh formalism

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