Defect detection in thin plates by ultrasonic lamb wave techniques

K. Edalati, A. Kermani, M. Seiedi, M. Movafeghi

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

4 Citations (Scopus)

Abstract

In the present study, the numerical method was investigated for drawing the dispersion and displacement curves of ultrasonic lamb wave, propagated in Aluminum thin plate. Two ultrasonic lamb wave techniques, pulse-echo (a1 mode emitter) and emission (s1 mode emitter), were used for interpretation of notch defects with depths of 10%, 30% and 60% of plate thickness. Thickness of plate was 2 mm and the nominal center frequency of transducers was 2 MHz. It was observed that these techniques are sensitive to evaluate defects, especially in short probe to defect distances. Also, it was found that amplitude analysis can give some qualitative information about defects depth by using Distance-Amplitude-Correction curves, but it was not sometime repeatable. In this respect, pulse echo method showed better sensitivity of amplitude to defects depth variation.

Original languageEnglish
Title of host publication8th International Conference of the Slovenian Society for Non-Destructive Testing
Subtitle of host publicationApplication of Contemporary Non-Destructive Testing in Engineering
PublisherSlovenian Soc Nondestructive Testing, Fac Mech Engineering
Pages35-43
Number of pages9
ISBN (Electronic)9619061055
Publication statusPublished - Jan 1 2005
Externally publishedYes
Event8th International Conference of the Slovenian Society for Non-Destructive Testing: Application of Contemporary Non-Destructive Testing in Engineering - Portoroz, Slovenia
Duration: Sep 1 2005Sep 3 2005

Publication series

Name8th International Conference of the Slovenian Society for Non-Destructive Testing: Application of Contemporary Non-Destructive Testing in Engineering

Other

Other8th International Conference of the Slovenian Society for Non-Destructive Testing: Application of Contemporary Non-Destructive Testing in Engineering
CountrySlovenia
CityPortoroz
Period9/1/059/3/05

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All Science Journal Classification (ASJC) codes

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Safety, Risk, Reliability and Quality

Cite this

Edalati, K., Kermani, A., Seiedi, M., & Movafeghi, M. (2005). Defect detection in thin plates by ultrasonic lamb wave techniques. In 8th International Conference of the Slovenian Society for Non-Destructive Testing: Application of Contemporary Non-Destructive Testing in Engineering (pp. 35-43). (8th International Conference of the Slovenian Society for Non-Destructive Testing: Application of Contemporary Non-Destructive Testing in Engineering). Slovenian Soc Nondestructive Testing, Fac Mech Engineering.