Skip to main content
padlock icon - secure page this page is secure

Dispersion and its implications on flaw detection using guided waves

Buy Article:

$22.00 + tax (Refund Policy)

Guided waves, including Lamb waves, are getting more and more attention as they provide a new approach to scan and evaluate the material integrity, especially for products of large size. The major differences between guided waves and primary bulk waves are the nature of particle vibrations, boundary requirements for propagation, dispersive nature, different wave structures for different modes etc. Accordingly, the capability to sense the flaws also varies with different modes. Knowing the structure of the propagating media, it is essential to identify an appropriate mode of guided wave to suit the required flaw detection. One of the characteristic properties of guided waves is their dispersive nature. The graphical representation of these waves on the phase and frequency planes constitutes dispersion curves. For selecting an appropriate mode of guided wave to implement a flaw detection technique, knowledge of the dispersion characteristics is essential. In this paper the experimental work, data gathered and inferences derived on the dispersive characteristic of Lamb waves/guided waves and its impact on flaw detection is reported. Also the impact of dispersion characteristics on pulse energy, frequency spectrum of a pulse and pulse duration are experimentally analysed and reported.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Document Type: Research Article

Affiliations: Non-Destructive Testing, Quality Control & Inspection, Mechanical Engineering Entity at the Vikram Sarabhai Space Centre, Trivandrum, India

Publication date: May 1, 2005

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more