初始应力对压电/压磁层合圆柱中水平剪切波传播特性的影响
Effect of initial stress on propagation behaviors of shear horizontal waves in piezoelectric/piezomagnetic layered cylinders.
作者信息
Zhao X, Qian Z H, Zhang S, Liu J X
机构信息
State Key Laboratory of Mechanics and Control of Mechanical Structures/College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China; Department of Engineering Mechanics, Shijiazhuang Tiedao University, Shijiazhuang 050043, PR China.
State Key Laboratory of Mechanics and Control of Mechanical Structures/College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, PR China.
出版信息
Ultrasonics. 2015 Dec;63:47-53. doi: 10.1016/j.ultras.2015.06.012. Epub 2015 Jun 23.
An analytical approach is taken to investigate shear horizontal wave (SH wave) propagation in layered cylinder with initial stress, where a piezomagnetic (PM) material thin layer is bonded to a piezoelectric (PE) cylinder. Two different material combinations are taken into account, and the phase velocities of the SH waves are numerically calculated for the magnetically open and short cases, respectively. It is found that the initial stress, the thickness ratio and the material performance have a great influence on the phase velocity. The results obtained in this paper can offer fundamental significance to the application of PE/PM composite media or structure for the acoustic wave and microwave technologies.
采用一种分析方法来研究含初始应力的层状圆柱体中水平剪切波（SH波）的传播，其中一个压磁（PM）材料薄层与一个压电（PE）圆柱体粘结在一起。考虑了两种不同的材料组合，并分别针对磁开路和磁短路情况数值计算了SH波的相速度。结果发现，初始应力、厚度比和材料性能对相速度有很大影响。本文所得结果可为PE/PM复合介质或结构在声波和微波技术中的应用提供重要的理论依据。
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