Antiplane response of a flat-bottomed semicircular canyon to cylindrical elastic waves

Kao Hao Chang; Wei Chien Wang; Shan Chung Hsu

doi:10.1007/s10665-020-10044-9

Antiplane response of a flat-bottomed semicircular canyon to cylindrical elastic waves

Kao Hao Chang, Wei Chien Wang, Shan Chung Hsu

Department of Civil Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The purpose of this study is to theoretically probe how the joint effects of near-field source and surface topography impact the seismic wavefields. A simplified canyon model, which couples a semicircular model with a model for minor segments, is used to predict characteristic changes in ground motions due to line-source excitation. Based on a semi-analytical procedure using the region-matching technique, a Fourier–Bessel series solution is derived. Distinct coordinate systems are unified with the aid of Graf’s addition formula. Comparisons with boundary-element solutions verify the modelling framework proposed. Steady-state and transient simulations are both conducted.

Original language	English
Pages (from-to)	125-139
Number of pages	15
Journal	Journal of Engineering Mathematics
Volume	121
Issue number	1
DOIs	https://doi.org/10.1007/s10665-020-10044-9
State	Published - 1 Apr 2020

Keywords

Near-source effect
Scattering
Topographic effect
Wavefunction

Access to Document

10.1007/s10665-020-10044-9

Cite this

@article{72f35af7e3704ad7a2a1ce1eaf02f1c5,

title = "Antiplane response of a flat-bottomed semicircular canyon to cylindrical elastic waves",

abstract = "The purpose of this study is to theoretically probe how the joint effects of near-field source and surface topography impact the seismic wavefields. A simplified canyon model, which couples a semicircular model with a model for minor segments, is used to predict characteristic changes in ground motions due to line-source excitation. Based on a semi-analytical procedure using the region-matching technique, a Fourier–Bessel series solution is derived. Distinct coordinate systems are unified with the aid of Graf{\textquoteright}s addition formula. Comparisons with boundary-element solutions verify the modelling framework proposed. Steady-state and transient simulations are both conducted.",

keywords = "Near-source effect, Scattering, Topographic effect, Wavefunction",

author = "Chang, {Kao Hao} and Wang, {Wei Chien} and Hsu, {Shan Chung}",

note = "Publisher Copyright: {\textcopyright} 2020, Springer Nature B.V.",

year = "2020",

month = apr,

day = "1",

doi = "10.1007/s10665-020-10044-9",

language = "???core.languages.en_GB???",

volume = "121",

pages = "125--139",

journal = "Journal of Engineering Mathematics",

issn = "0022-0833",

number = "1",

}

TY - JOUR

T1 - Antiplane response of a flat-bottomed semicircular canyon to cylindrical elastic waves

AU - Chang, Kao Hao

AU - Wang, Wei Chien

AU - Hsu, Shan Chung

PY - 2020/4/1

Y1 - 2020/4/1

N2 - The purpose of this study is to theoretically probe how the joint effects of near-field source and surface topography impact the seismic wavefields. A simplified canyon model, which couples a semicircular model with a model for minor segments, is used to predict characteristic changes in ground motions due to line-source excitation. Based on a semi-analytical procedure using the region-matching technique, a Fourier–Bessel series solution is derived. Distinct coordinate systems are unified with the aid of Graf’s addition formula. Comparisons with boundary-element solutions verify the modelling framework proposed. Steady-state and transient simulations are both conducted.

AB - The purpose of this study is to theoretically probe how the joint effects of near-field source and surface topography impact the seismic wavefields. A simplified canyon model, which couples a semicircular model with a model for minor segments, is used to predict characteristic changes in ground motions due to line-source excitation. Based on a semi-analytical procedure using the region-matching technique, a Fourier–Bessel series solution is derived. Distinct coordinate systems are unified with the aid of Graf’s addition formula. Comparisons with boundary-element solutions verify the modelling framework proposed. Steady-state and transient simulations are both conducted.

KW - Near-source effect

KW - Scattering

KW - Topographic effect

KW - Wavefunction

UR - http://www.scopus.com/inward/record.url?scp=85083371918&partnerID=8YFLogxK

U2 - 10.1007/s10665-020-10044-9

DO - 10.1007/s10665-020-10044-9

M3 - 期刊論文

AN - SCOPUS:85083371918

SN - 0022-0833

VL - 121

SP - 125

EP - 139

JO - Journal of Engineering Mathematics

JF - Journal of Engineering Mathematics

IS - 1

ER -

Antiplane response of a flat-bottomed semicircular canyon to cylindrical elastic waves

Abstract

Keywords

Access to Document

Fingerprint

Cite this