Scattering of a semi-cylindrical canyon and a crack with incident SH waves

LIU Gang; LI Hong-liang; LIU Dian-kui

doi:10.11883/1001-1455(2007)02-0171-08

Volume 27 Issue 2

Oct. 2014

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Article Navigation > Explosion And Shock Waves > 2007 > 27(2): 171-178

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LIU Gang, LI Hong-liang, LIU Dian-kui. Scattering of a semi-cylindrical canyon and a crack with incident SH waves[J]. Explosion And Shock Waves, 2007, 27(2): 171-178. doi: 10.11883/1001-1455(2007)02-0171-08

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Scattering of a semi-cylindrical canyon and a crack with incident SH waves

doi: 10.11883/1001-1455(2007)02-0171-08

1.
Department of Civil Engineering, Harbin Engineering University, Harbin 150001, Heilongjiang, China

Publish Date: 2007-03-25

Abstract

Abstract

The scattering of a semi-cylindrical canyon and a crack with incident SH waves was studied based on Greens function. A special Greens function which was a fundamental solution of displacement field for a half-elastic space with a semi-cylindrical canyon bearing an anti-plane harmonic line-source force at any point was proposed for the present problem. And the scattering problem of SH-wave by a half-elastic space with semi-cylindrical canyon was solved. Then, at the actual position of cracks, the existent cracks could be reverted by using Greens function and the method of crack-division. Integration for the obtained solution of the whole problem was established, and the solution of the ground surfaces displacement amplitude was concluded.
- mechanics of explosion,
- displacement amplitude,
- Greens function,
- SH-wave scattering,
- cracks,
- semi-cylindrical canyon

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