An Analytic Solution for the Diffraction of Plane P Waves by a Cylindrical Inclusion in Half Space

Da Guang Li; Xue Ping Gao; Zhang Ying

doi:10.4028/www.scientific.net/AMR.255-260.2520

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 255-260An Analytic Solution for the Diffraction of Plane...

An Analytic Solution for the Diffraction of Plane P Waves by a Cylindrical Inclusion in Half Space

Abstract:

This paper presents an analytic solution for the diffraction of plane P waves by a cylindrical inclusion in half space by Fourier-Bessel wave function expansion method, in which the flat surface of half space is approximated by a large curved surface. The equation can be constructed by the continue boundary and the free surface condition. Based on parametric analysis, the impact of the inclusion on surface displacement amplitude is discussed. It is illustrated that there is large difference of the diffraction characteristics between the hard inclusion and soft inclusion. The displacement response depends strongly on the incident angle and frequency. The diffraction effect can be ignored with large embedded depth of the inclusion.

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Periodical:

Advanced Materials Research (Volumes 255-260)

Pages:

2520-2525

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.255-260.2520

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Online since:

May 2011

Authors:

Da Guang Li, Xue Ping Gao, Zhang Ying

Keywords:

Analytic Solution, Diffraction, Fourier-Bessel Wave Function Expansion, Inclusion, Plane P Waves

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