Efficient use of Lamb modes for detecting defects in large plates

T. Ghosh, T. Kundu, P. Karpur

Research output: Contribution to journalArticle

149 Scopus citations

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
DOIs
StatePublished - May 1998

Keywords

  • Defect detection
  • Lamb wave
  • Plate
  • Stress

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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