Scattering of SH-wave by a circular cavity in radial inhomogeneous piezoelectric medium

Zhang Ximeng; Qi Hui; Sun Xueliang

doi:10.11883/1001-1455(2017)03-0464-07

Volume 37 Issue 3

Apr. 2017

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Zhang Ximeng, Qi Hui, Sun Xueliang. Scattering of SH-wave by a circular cavity in radial inhomogeneous piezoelectric medium[J]. Explosion And Shock Waves, 2017, 37(3): 464-470. doi: 10.11883/1001-1455(2017)03-0464-07

Citation:

Zhang Ximeng, Qi Hui, Sun Xueliang. Scattering of SH-wave by a circular cavity in radial inhomogeneous piezoelectric medium[J]. Explosion And Shock Waves, 2017, 37(3): 464-470. doi: 10.11883/1001-1455(2017)03-0464-07

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Scattering of SH-wave by a circular cavity in radial inhomogeneous piezoelectric medium

doi: 10.11883/1001-1455(2017)03-0464-07

College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China

Received Date: 2015-11-23
Rev Recd Date: 2016-06-24
Publish Date: 2017-05-25

Abstract

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.

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References(12)

References

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