Material interface inspection by Lamb waves

Tribikram Kundu, K. Maslov

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

In this paper an investigation on the Lamb wave propagation through a two-layered glass plate with different interface conditions between the layers is carried out to study the effectiveness of Lamb waves in detecting defects at the interface as well as estimating the interface strength. To this end the stress field inside the two layered plate is theoretically calculated for different interface conditions and for a number of propagating Lamb modes. It is observed that, for every Lamb mode, the stress field inside the plate varies significantly with depth. Symmetric modes generate maximum normal stress and zero shear stress at the central plane; the situation is reversed for the antisymmetric modes. it is found that the Lamb modes which produce large shear stress at the interface position are most sensitive to the shear stiffness of the interface. Void and delamination type defects that release the interface stress affect those Lamb modes most significantly which produce high stress at the interface position. Theoretical predictions have been experimentally verified.

Original languageEnglish (US)
Pages (from-to)3885-3901
Number of pages17
JournalInternational Journal of Solids and Structures
Volume34
Issue number29
StatePublished - Oct 1997

Fingerprint

Lamb Waves
Lamb waves
Surface waves
Inspection
inspection
Interface Conditions
Shear stress
Stress Field
Shear Stress
Defects
shear stress
stress distribution
Delamination
Wave propagation
Antisymmetric
Voids
Wave Propagation
Stiffness
defects
Glass

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Material interface inspection by Lamb waves. / Kundu, Tribikram; Maslov, K.

In: International Journal of Solids and Structures, Vol. 34, No. 29, 10.1997, p. 3885-3901.

Research output: Contribution to journalArticle

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