Modeling of elastic wave scattering by a hole in a half-space

Samik Das, Sourav Banerjee, Tribikram Kundu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In NDT (nondestructive testing) often a side-drilled hole (circular cavity) is used for calibration. In this paper scattering of ultrasonic waves by a circular hole is studied. The ultrasonic wave is generated by a transducer of finite dimension. A newly developed semi-analytical technique called Distributed point source method (DPSM) has been adopted to solve this problem. Even though this is an old problem the complete field of the scattered waves in presence of a hole in a half space near its boundary has not been shown in the literature yet. The scattered ultrasonic field (stress and displacement) is computed using DPSM and presented in the paper. Solution of this problem will also help us to understand the distortion of the ultrasonic field in the half-space due to the presence of a circular anomaly (cavity or inclusion) which plays an important role in structural health monitoring.

Original languageEnglish (US)
Title of host publicationHealth Monitoring of Structural and Biological Systems 2008
DOIs
StatePublished - Jun 2 2008
EventHealth Monitoring of Structural and Biological Systems 2008 - San Diego, CA, United States
Duration: Mar 10 2008Mar 13 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6935
ISSN (Print)0277-786X

Other

OtherHealth Monitoring of Structural and Biological Systems 2008
CountryUnited States
CitySan Diego, CA
Period3/10/083/13/08

Keywords

  • Circular hole
  • Distributed point source method
  • Scattering
  • Ultrasonic NDT

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Das, S., Banerjee, S., & Kundu, T. (2008). Modeling of elastic wave scattering by a hole in a half-space. In Health Monitoring of Structural and Biological Systems 2008 [69350K] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6935). https://doi.org/10.1117/12.774422