爆炸与冲击2017，Vol.37Issue(3)：464-470,7.DOI:10.11883/1001-1455(2017)03-0464-07
径向非均匀压电介质中圆孔对SH波的散射
Scattering of SH-wave by a circular cavity in radial inhomogeneous piezoelectric medium
摘要
Abstract
The dynamic anti-plane behavior of the radial inhomogeneous piezoelectric medium with a circular cavity under the SH-wave was investigated using the complex function theory.It was assumed that the density of the piezoelectric medium varied as a power-law function on the radial distance but the elastic parameters,the piezoelectric parameters,and the dielectric parameters all remained as constants.The wave equations of the inhomogeneous piezoelectric medium were converted to the standard Helmholtz equations by variable substitution and the analytical expression of the wave function satisfying the boundary condition was obtained.The influence of the incident angle,the frequency of incident wave and the power of the power-law function,etc.on the dynamic stress concentration factor and electric field intensity concentration factor was analyzed and compared with the existing references in the calculated example.The numerical results show that the values of the dynamic stress concentration factor and the electric field intensity concentration factor increase as the power increases with combination of certain parameters.关键词
径向非均匀压电介质/反平面动力特征/SH波/动应力集中系数/电场强度集中系数Key words
radial inhomogeneous piezoelectric medium/dynamic anti-plane behavior/SH wave/dynamic stress concentration factor/electric field intensity concentration factor分类
数理科学引用本文复制引用
张希萌,齐辉,孙学良..径向非均匀压电介质中圆孔对SH波的散射[J].爆炸与冲击,2017,37(3):464-470,7.基金项目
黑龙江自然科学基金项目(A201404) （A201404）
