IGGCAS OpenIR  > 地球与行星物理院重点实验室
Acoustoelastic FD Simulation of Elastic Wave Propagation in Prestressed Media
Yang, Haidi1,2; Fu, Li-Yun1,2; Fu, Bo-Ye3,4; Muller, Tobias M.5
2022-04-28
Source PublicationFRONTIERS IN EARTH SCIENCE
Volume10Pages:18
AbstractInsights into wave propagation in prestressed media are important in geophysical applications such as monitoring changes in geo-pressure and tectonic stress. This can be addressed by acoustoelasticity theory, which accounts for nonlinear strain responses due to stresses of finite magnitude. In this study, a rotated staggered grid finite-difference (RSG-FD) method with an unsplit convolutional perfectly matched layer absorbing boundary is used to solve the relevant acoustoelastic equations with third-order elastic constants for elastic wave propagation in prestressed media. We partially verify our numerical simulations by the plane-wave theoretical solution. Comparisons of theoretical and calculated wave velocities are conducted for both P-wave and S-wave as a function of hydrostatic prestresses. We discuss several aspects of the numerical implementation. Numerical acoustoelasticity simulations for wave propagation in single- and double-layer models are carried out under four states of prestresses, confining, uniaxial, pure-shear, and simple-shear. The results display the effective anisotropy of elastic wave propagation in acoustoelastic media, illustrating that the prestress-induced velocity anisotropy is of orthotropic features strongly related to the orientation of prestresses. These examples demonstrate the significant impact of prestressed conditions on seismic responses in both phase and amplitude.
Keywordacoustoelasticity elastic wave propagation modelling CPML absorbing boundary condition rotated staggered grid (RSG) method
DOI10.3389/feart.2022.886920
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordNUMERICAL-SIMULATION ; GRAZING-INCIDENCE ; DIFFERENCE ; ANISOTROPY
Language英语
Funding ProjectNational Natural Science Foundation of China ; [41,821,002] ; [41,720,104,006]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000795874200001
PublisherFRONTIERS MEDIA SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105971
Collection地球与行星物理院重点实验室
Corresponding AuthorFu, Li-Yun
Affiliation1.China Univ Petr East China, Shandong Prov Key Lab Deep Oil & Gas, Qingdao, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao, Peoples R China
3.Inst Geol & Geophys, Chinese Acad Sci, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
4.Inst Earth Sci, Chinese Acad Sci, Beijing, Peoples R China
5.Ctr Invest Cient & Educ Super Ensenada CICESE, Dept Seismol, Ensenada, Mexico
Recommended Citation
GB/T 7714
Yang, Haidi,Fu, Li-Yun,Fu, Bo-Ye,et al. Acoustoelastic FD Simulation of Elastic Wave Propagation in Prestressed Media[J]. FRONTIERS IN EARTH SCIENCE,2022,10:18.
APA Yang, Haidi,Fu, Li-Yun,Fu, Bo-Ye,&Muller, Tobias M..(2022).Acoustoelastic FD Simulation of Elastic Wave Propagation in Prestressed Media.FRONTIERS IN EARTH SCIENCE,10,18.
MLA Yang, Haidi,et al."Acoustoelastic FD Simulation of Elastic Wave Propagation in Prestressed Media".FRONTIERS IN EARTH SCIENCE 10(2022):18.
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