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Wave propagation in a three-dimensional half-space with semi-infinite irregularities

Daneshyar, A ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1080/17455030.2021.1974602
  3. Publisher: Taylor and Francis Ltd , 2021
  4. Abstract:
  5. Dynamic analysis of problems with complex geometries requires utilization of numerical methods. To completely capture the effects of seismic wave propagation in a system, one must consider the structure or irregularity within its encompassing half-space. Correct consideration of half-space in a numerical model is important specially when it comes to cases where the half-space contains semi-infinite irregularities. In this study, a generalized numerical methodology is presented for dynamic analysis of a half-space with semi-infinite irregularities. The methodology is first verified through comparison with analytical solution of known problems. Then the method is employed to solve the dynamic analysis of an arbitrary-shaped existing valley within a half-space under propagating plane harmonic SH wave with different angles of incidence. Results indicate complete capability of the methodology in solving wave propagation problems for complex systems without the usual restrictions of common existing methods. © 2021 Informa UK Limited, trading as Taylor & Francis Group
  6. Keywords:
  7. Numerical methods ; Shear waves ; Wave propagation ; Angles of incidence ; Complex geometries ; Half spaces ; Numerical methodologies ; Propagating plane ; SH wave ; Wave propagation problems ; Geometry
  8. Source: Waves in Random and Complex Media ; 2021 ; 17455030 (ISSN)
  9. URL: https://www.tandfonline.com/doi/abs/10.1080/17455030.2021.1974602?journalCode=twrm20