Scattering problem of the interface circular cavity in piezoelectric media

Author

Lei Liu ; Cun-fa Gao

Author_Institution

State Key Lab. of Mech. & Control of Mech. Struct., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China

fYear

2012

fDate

23-25 Nov. 2012

Firstpage

379

Lastpage

382

Abstract

The present work investigates the scattering problem of plane SH wave in piezoelectric media with an interface circular cavity. With using the Hankel functions and the expansion method of wave functions, the basic Green´s function solutions are given. Then, based on the interface continuity conditions, the integral equations of the scattering problem with the interface circular cavity are established. By solving the integral equations, the dynamic stress around the hole is obtained. Some numerical examples are given to show the influence of the material parameters upon dynamic concentration factors. It is found that the change of the material parameters has a great influence on the dynamic stress concentration.

Keywords

Green´s function methods; elastic waves; integral equations; piezoelectricity; wave functions; Green´s function solutions; Hankel functions; dynamic stress; expansion method; integral equations; interface circular cavity; interface continuity conditions; material parameters; piezoelectric media; plane SH wave; scattering problem; Aerodynamics; Cavity resonators; Media; Piezoelectric materials; Scattering; Stress; Green´s function; Interface circular cavity; Piezoelectric materials; SH wave;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2012 Symposium on

Conference_Location

Shanghai

Print_ISBN

978-1-4673-4814-0

Type

conf

DOI

10.1109/SPAWDA.2012.6464113

Filename

6464113