Header menu link for other important links
X
Imaging of defects in composite structures using guided ultrasonics
S. Mahadev Prasad, R. Vinu Kumar, Balasubramaniam Krishnan, C. V. Krishnamoorthy
Published in
2002
Volume: 5062
   
Issue: 2
Pages: 700 - 703
Abstract
The ability of Lamb waves to travel long distances can be harnessed to monitor damage in large structures, such as those used in aerospace applications. This paper reports on studies of the propagation of Lamb waves in composite structures the signal processing techniques used to get information from Lamb wave data. The Short Time Fourier Transform (STFT) is used as a tool for signal processing on Lamb waves. The energy of the Lamb wave signal is employed to reconstruct the image using iterative tomographic algorithms.
About the journal
JournalProceedings of SPIE - The International Society for Optical Engineering
ISSN0277786X
Open AccessNo
Concepts (12)
  •  related image
    Algorithms
  •  related image
    Defects
  •  related image
    Fourier transforms
  •  related image
    Image reconstruction
  •  related image
    Iterative methods
  •  related image
    Signal processing
  •  related image
    Ultrasonic imaging
  •  related image
    ULTRASONIC PROPAGATION
  •  related image
    ITERATIVE TOMOGRAPHIC ALGORITHMS
  •  related image
    Lamb waves
  •  related image
    SHORT TIME FOURIER TRANSFORM
  •  related image
    Composite structures