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 publicationProceedings of SPIE - The International Society for Optical Engineering
Volume6935
DOIs
StatePublished - 2008
EventHealth Monitoring of Structural and Biological Systems 2008 - San Diego, CA, United States
Duration: Mar 10 2008Mar 13 2008

Other

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

Fingerprint

Ultrasonic waves
Elastic waves
wave scattering
half spaces
elastic waves
elastic scattering
Ultrasonics
Scattering
ultrasonic radiation
point sources
Structural health monitoring
ultrasonics
Nondestructive examination
Transducers
cavities
structural health monitoring
Calibration
stress distribution
transducers
inclusions

Keywords

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

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

Modeling of elastic wave scattering by a hole in a half-space. / Das, Samik; Banerjee, Sourav; Kundu, Tribikram.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6935 2008. 69350K.

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

Das, S, Banerjee, S & Kundu, T 2008, Modeling of elastic wave scattering by a hole in a half-space. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6935, 69350K, Health Monitoring of Structural and Biological Systems 2008, San Diego, CA, United States, 3/10/08. https://doi.org/10.1117/12.774422
Das S, Banerjee S, Kundu T. Modeling of elastic wave scattering by a hole in a half-space. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6935. 2008. 69350K https://doi.org/10.1117/12.774422
Das, Samik ; Banerjee, Sourav ; Kundu, Tribikram. / Modeling of elastic wave scattering by a hole in a half-space. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6935 2008.
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