Efficient use of Lamb modes for detecting defects in large plates

T. Ghosh, Tribikram Kundu, P. Karpur

Research output: Contribution to journalArticle

142 Citations (Scopus)

Abstract

In this paper, Lamb wave propagation in large plates and its use in internal defect detection have been studied. The Lamb modes which are most efficient for detecting different types of internal defects are identified. Stress fields inside the plate for different Lamb modes are computed. From these stress plots one can conclude which Lamb mode should be efficient for detecting which type of material defect. Theoretical predictions are experimentally verified.

Original languageEnglish (US)
Pages (from-to)791-801
Number of pages11
JournalUltrasonics
Volume36
Issue number7
StatePublished - May 1998

Fingerprint

Defects
defects
Surface waves
Wave propagation
Lamb waves
stress distribution
wave propagation
plots
predictions
Defect detection

Keywords

  • Defect detection
  • Lamb wave
  • Plate
  • Stress

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Acoustics and Ultrasonics

Cite this

Efficient use of Lamb modes for detecting defects in large plates. / Ghosh, T.; Kundu, Tribikram; Karpur, P.

In: Ultrasonics, Vol. 36, No. 7, 05.1998, p. 791-801.

Research output: Contribution to journalArticle

Ghosh, T, Kundu, T & Karpur, P 1998, 'Efficient use of Lamb modes for detecting defects in large plates', Ultrasonics, vol. 36, no. 7, pp. 791-801.
Ghosh, T. ; Kundu, Tribikram ; Karpur, P. / Efficient use of Lamb modes for detecting defects in large plates. In: Ultrasonics. 1998 ; Vol. 36, No. 7. pp. 791-801.
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