Near Lamb mode imaging of multilayered composite plates

Tribikram Kundu, Catherine Potel, Jean Francois de Belleval

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

2 Citations (Scopus)

Abstract

Lamb waves have been used for internal defect detection in multilayered composite plates. Different Lamb modes generate various stress levels in different layers. As a result, all Lamb modes are not equally sensitive to internal defects located in different layers. A number of studies have been carried out to identify which Lamb mode is most effective for detecting defects in a specific layer. However, one shortcoming of the Lamb wave inspection technique is that in a symmetrically layered composite plate stress and displacement magnitudes and energy distribution profiles for all Lamb modes are symmetric about the central plane of the plate. As a result, the ability of a Lamb mode to detect defects in a specific layer of the plate is identical to its ability to detect defects in the corresponding layer of mirror symmetry. Hence, from the Lamb wave generated image one cannot distinguish between the defects in two layers of mirror symmetry. In this paper it is investigated how by fine-tuning the frequency and the striking angle of the incident beam in the neighborhood of a Lamb mode one can separately detect internal defects in layers of mirror symmetry in the upper and lower halves of a plate.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages174-183
Number of pages10
Volume3994
StatePublished - 2000
EventNondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware IV - Newport Beach, CA, USA
Duration: Mar 7 2000Mar 8 2000

Other

OtherNondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware IV
CityNewport Beach, CA, USA
Period3/7/003/8/00

Fingerprint

Imaging techniques
Defects
composite materials
defects
Composite materials
Lamb waves
Surface waves
Mirrors
mirrors
symmetry
Tuning
Inspection
inspection
energy distribution
tuning
profiles

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Kundu, T., Potel, C., & de Belleval, J. F. (2000). Near Lamb mode imaging of multilayered composite plates. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3994, pp. 174-183). Society of Photo-Optical Instrumentation Engineers.

Near Lamb mode imaging of multilayered composite plates. / Kundu, Tribikram; Potel, Catherine; de Belleval, Jean Francois.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3994 Society of Photo-Optical Instrumentation Engineers, 2000. p. 174-183.

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

Kundu, T, Potel, C & de Belleval, JF 2000, Near Lamb mode imaging of multilayered composite plates. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3994, Society of Photo-Optical Instrumentation Engineers, pp. 174-183, Nondestructive Evaluation of Aging Aircraft, Airports, and Aerospace Hardware IV, Newport Beach, CA, USA, 3/7/00.
Kundu T, Potel C, de Belleval JF. Near Lamb mode imaging of multilayered composite plates. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3994. Society of Photo-Optical Instrumentation Engineers. 2000. p. 174-183
Kundu, Tribikram ; Potel, Catherine ; de Belleval, Jean Francois. / Near Lamb mode imaging of multilayered composite plates. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3994 Society of Photo-Optical Instrumentation Engineers, 2000. pp. 174-183
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