Please use this identifier to cite or link to this item:
Title: Surface motion of a half-space with triangular and semicircular hills under incident SH waves
Authors: Liu, G. 
Chen, H.
Liu, D.
Khoo, B.C. 
Issue Date: 1-Jun-2010
Citation: Liu, G., Chen, H., Liu, D., Khoo, B.C. (2010-06-01). Surface motion of a half-space with triangular and semicircular hills under incident SH waves. Bulletin of the Seismological Society of America 100 (3) : 1306-1319. ScholarBank@NUS Repository.
Abstract: Wave propagation in a half-space with complex surface configuration is often encountered in fields like seismology and ocean engineering. This article presents a theoretical study of multiple scattering of SH waves by two hills of different geometries (a triangle and a semicircle) on a solid half-space. The standing waves in the triangular and semicircular hills are constructed by the fractional-order Bessel function method and Fourier integral transform method, respectively. The unknown coefficients of the standing waves are determined via the region-matching method. It is shown that the apexes of the hills are very sensitive to the external dynamic load because of multiple incidences; in particular, the apex of the triangular hill exhibiting maximum amplitude is most susceptible to the external load. Furthermore, the effect of the interaction between the triangular and semicircular hills is evaluated. It is found that the amplitudes on the showdown zone that connects the two hills have been largely amplified due to the interaction between the two hills. The mutual interaction between the hills should not be neglected if the distance between them is less than O(100) times the typical dimension of the hill.
Source Title: Bulletin of the Seismological Society of America
ISSN: 00371106
DOI: 10.1785/0120090273
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Aug 11, 2018


checked on Jul 25, 2018

Page view(s)

checked on Aug 10, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.