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Scattering of Rayleigh Waves by a Trapezoidal Canyon

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2012
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Conference Paper

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Haeri, S.Mohsen and Ghadimi, Behzad and Nikraz, Hamid. 2012. Scattering of Rayleigh Waves by a Trapezoidal Canyon, in Vimonsatit, V. and Singh, A. and Yazdani, S. (ed), Research, Development, and Practice in Structural Engineering and Construction, The 1st Australasia and South East Asia Conference in Structural Engineering and Construction (ASEA-SEC-1), Nov 28-Dec 2 2012, pp. 583-587. Perth, Western Australia: Research Publishing Services
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Proceedings of the 1st Australasia and South East Asia Conference in Structural Engineering andConstruction (ASEA-SEC-1)
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The 1st Australasia and South East Asia Conference in Structural Engineering andConstruction (ASEA-SEC-1)
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Abstract

The response of a typical trapezoidal cross section canyon to Rayleigh waves is reported in this paper. A new approach based on Scaled Boundary Finite Element Method (SBFEM) is used to obtain scattered motion along the canyon. The analysis is performed in time domain. A harmonic excitation is applied to the undamped media and the scattered motion is obtained. The result of the study indicates that the upper parts of the canyon are more critical than the bottom also the side which is closer to the incident wave experiences higher excitation compared to other parts of the canyon.