.png){kind=icon}
返回
Micro-structural effects in phononic dielectric structures
.png){kind=icon}
PRE
AI
DOI：10.1016/j.compstruct.2022.116548.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Based on the higher-grade continuum theory, propagation of longitudinal as well as transverse anti-plane elastic waves in normal direction to nanoscale periodic laminates of piezoelectric dielectrics is studied in this paper. The strain gradients, micro-inertia and direct flexoelectricity phenomena are incorporated into the phenomenological description. The problem is analysed as one-dimensional and the governing equations together with possible boundary conditions are derived from the Hamilton variation principle. It is shown that the transverse waves are not affected by the electric polarization in contrast to the longitudinal waves. The developed formulation is applied to 1D Bloch waves obeying perfect boundary conditions periodical in bi-material laminates and the transfer matrix method is used for derivation of dispersion equation. An analytical method is developed for solution of the dispersion equation. The influence of the micro-stiffness and micro-inertial length scale param-eters as well as flexoelectric coefficients on the dispersion curves and the frequency gaps is investigated in parametric study.
Keyword:
Phononic crystals
Piezoelectric dielectrics
Bi-material periodic laminates
Microstructural effects
Longitudinal
transverse Bloch waves
Transfer matrix
Dispersion equation
Analytical solution
期刊
IF:
7.1
论文数:
1.8W
被引数:
8.0W
机构
引用论文
Phonon dispersion in hypersonic two-dimensional phononic crystal membranes.png)
PHYSICAL REVIEW B
OAAI
PHYSICAL REVIEW BIF3.7
OAAI分享收藏分享收藏A level-set based IGA foiniulation for topology optimization of flexoelectric materials基于水平集的IGA模型用于挠曲电材料的拓扑优化
PREAI
分享收藏
查看更多内容