Transient ultrasonic wave field modeling in an elastic half-space using distributed point source method

Samik Das, Sourav Banerjee, Tribikram Kundu

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

2 Citations (Scopus)

Abstract

Transient ultrasonic waves in an elastic half-space generated by an ultrasonic transducer of finite size are modeled by the Distributed Point Source Method (DPSM). DPSM which is a Green's function based semi-analytical mesh-free technique is modified to incorporate the transient loading from a finite size acoustic transducer. Fast Fourier transform (FFT) of the transient loading is computed and then DPSM is used to compute the ultrasonic field at different frequencies and then inverse fast Fourier transform (IFFT) is taken to get the transient response of an elastic half-space excited by a bounded acoustic beam. Numerical results are generated for elastic half-space excited with normal incidence of acoustic beam. Then the transient Rayleigh wave in the solid half-space is generated. The modeling is then extended to the transient response of an elastic half-space containing a crack, struck by a bounded acoustic beam. It is discussed in the paper what type of useful information that is hidden in the steady state solution can be obtained from the transient results.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7650
EditionPART 1
DOIs
StatePublished - 2010
EventHealth Monitoring of Structural and Biological Systems 2010 - San Diego, CA, United States
Duration: Mar 8 2010Mar 11 2010

Other

OtherHealth Monitoring of Structural and Biological Systems 2010
CountryUnited States
CitySan Diego, CA
Period3/8/103/11/10

Fingerprint

Ultrasonic Wave
Ultrasonic waves
ultrasonic radiation
Point Source
half spaces
Half-space
point sources
Acoustics
Modeling
acoustics
Transient Response
transient response
Fast Fourier transform
Transducer
Transient analysis
Fast Fourier transforms
transducers
ultrasonics
Acoustic transducers
Rayleigh Waves

Keywords

  • DPSM
  • FFT
  • Transient response
  • Ultrasonic modeling

ASJC Scopus subject areas

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

Cite this

Das, S., Banerjee, S., & Kundu, T. (2010). Transient ultrasonic wave field modeling in an elastic half-space using distributed point source method. In Proceedings of SPIE - The International Society for Optical Engineering (PART 1 ed., Vol. 7650). [76501G] https://doi.org/10.1117/12.847447

Transient ultrasonic wave field modeling in an elastic half-space using distributed point source method. / Das, Samik; Banerjee, Sourav; Kundu, Tribikram.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7650 PART 1. ed. 2010. 76501G.

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

Das, S, Banerjee, S & Kundu, T 2010, Transient ultrasonic wave field modeling in an elastic half-space using distributed point source method. in Proceedings of SPIE - The International Society for Optical Engineering. PART 1 edn, vol. 7650, 76501G, Health Monitoring of Structural and Biological Systems 2010, San Diego, CA, United States, 3/8/10. https://doi.org/10.1117/12.847447
Das S, Banerjee S, Kundu T. Transient ultrasonic wave field modeling in an elastic half-space using distributed point source method. In Proceedings of SPIE - The International Society for Optical Engineering. PART 1 ed. Vol. 7650. 2010. 76501G https://doi.org/10.1117/12.847447
Das, Samik ; Banerjee, Sourav ; Kundu, Tribikram. / Transient ultrasonic wave field modeling in an elastic half-space using distributed point source method. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7650 PART 1. ed. 2010.
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