A hybrid method to simulate elastic wave scattering of three-dimensional objects.

Journal Article (Journal Article)

A hybrid method based on the finite-difference method and equivalence principle to simulate elastic wave scattering of three-dimensional objects is proposed. In this method, the near fields are first calculated in a rectangular volume containing the object by the finite-difference method. Then the displacements and tractions on a virtual surface are transformed to the far field by the application of the equivalence principle in elastodynamics. The feasibility is verified by comparing modeling results with the analytical solution for the canonical point force source radiation problem. Modeling for complex scatterer structures shows the advantage of this method in handling multi-scale scattering problems.

Full Text

Duke Authors

Cited Authors

  • Li, Z; Su, Y; Tang, X; Li, H; Liu, QH

Published Date

  • October 2018

Published In

Volume / Issue

  • 144 / 4

Start / End Page

  • EL268 -

PubMed ID

  • 30404480

Electronic International Standard Serial Number (EISSN)

  • 1520-8524

International Standard Serial Number (ISSN)

  • 0001-4966

Digital Object Identifier (DOI)

  • 10.1121/1.5059332

Language

  • eng