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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50436

Title: Scattering problems of the SH Wave by Using the Null-Field Boundary Integral Equation Method
Authors: Jeng-Tzong Chen
Shing-Kai Kao
Yin-Hsiang Hsu
Yu Fan
Contributors: 國立臺灣海洋大學:河海工程學系
Keywords: SH-wave
Diffraction
Hill
Tunnel
Null-field BIEM
Degenerate kernel
Date: 2018
Issue Date: 2018-10-08T06:00:34Z
Publisher: Journal of Earthquake Engineering
Abstract: Abstract: The scattering problem of seismic waves is an important issue for studying earthquake engineering. In this paper, the null-field boundary integral equation approach was used in conjunction with degenerate kernels and eigenfunction expansion to solve the SH-wave scattering problem of a circular or an elliptical-arc hill. The original problem is divided into subdomains by taking a free-body diagram. One region is an interior boundary value problem. The other is a canyon scattering problem. For the boundary value problem, not only a simply connected domain (elliptical-arc hill problem) but also a doubly connected domain (a circular-arc hill problem containing a circular tunnel or a circular inclusion) is considered. The canyon scattering problem may be addressed in an infinite domain with an artificial boundary of a full plane such that the degenerate kernel can be fully utilized. The null-field integral equation method is used to match boundary conditions. Numerical results are compared favorably with the available data.
Relation: 22(1) pp.1-35
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50436
Appears in Collections:[河海工程學系] 期刊論文

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