Scattering of SH-wave by elliptical inclusion with partial debond curve and circular cavity in half space

QI Hui; CHEN Hongying; ZHANG Ximeng; ZHAO Yuanbo; XIANG Meng

doi:10.11883/bzycj-2017-0142

Volume 38 Issue 6

Sep. 2018

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Article Navigation > Explosion And Shock Waves > 2018 > 38(6): 1344-1352

QI Hui, CHEN Hongying, ZHANG Ximeng, ZHAO Yuanbo, XIANG Meng. Scattering of SH-wave by elliptical inclusion with partial debond curve and circular cavity in half space[J]. Explosion And Shock Waves, 2018, 38(6): 1344-1352. doi: 10.11883/bzycj-2017-0142

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QI Hui, CHEN Hongying, ZHANG Ximeng, ZHAO Yuanbo, XIANG Meng. Scattering of SH-wave by elliptical inclusion with partial debond curve and circular cavity in half space[J]. Explosion And Shock Waves, 2018, 38(6): 1344-1352. doi: 10.11883/bzycj-2017-0142

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Scattering of SH-wave by elliptical inclusion with partial debond curve and circular cavity in half space

doi: 10.11883/bzycj-2017-0142

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

Received Date: 2017-05-02
Rev Recd Date: 2017-08-02
Publish Date: 2018-11-25

Abstract

Abstract

In order to study the scattering problems of SH-wave by elliptical inclusion with partial debond curve and circular cavity in half space. The method of "conformal mapping" is used to map the elliptical inclusions into circular inclusions. The displacement field and the stress field of the elliptical inclusion and circular cavity are obtained by Green's function method with the ridding of image method. Secondly, infinite system of linear equations are established by boundary conditions, which are continuous around the elliptical inclusion with the displacement and stress, and then the unknown coefficients of wave function are solved by the free around circular cavity with stress. Finally, the "partial debond curve model" is constructed, the equal stress with opposite direction is applied in the partial debond curve. By which we obtain the total displacement field of the elliptical inclusion with a partially debond curve and circular in the half space. Numerical examples show that the dynamic stress concentration factor (DSCF) is influenced by the incident angle, the frequency of incident wave, the distance of the defect, the depth of inclusion and the partial debond curve angle.
- SH wave,
- scattering,
- elliptic inclusion,
- partial debond curve,
- Green's function,
- conformal mapping,
- dynamic stress factor

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References(17)

References

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