Header menu link for other important links
X
Visualization studies of Lamb wave propagation and interactions with anomalies in composite laminates using air-coupled ultrasonics
V. S. Sasanka Durvasula, Janardhan Padiyar M,
Published in American Institute of Physics Inc.
2014
Volume: 1581 33
   
Pages: 1091 - 1097
Abstract
An experimental method to visualize the propagation of ultrasonic Lamb waves in composite plates with delaminations, using air coupled ultrasonic transducers, is described here. Using this method experiments are done, on glass fiber reinforced plastic(GFRP) laminates, to study the Lamb wave interactions with delamination type defects. The S0 and A0 modes are chosen for experiments at an excitation frequency of 200 kHz. Defect dimensions are calculated from the visualization images and compared with actual values. A method for detecting depth of defects using deviation of wave-fronts, at the defect contours, is presented. © 2014 AIP Publishing LLC.
About the journal
JournalData powered by TypesetAIP Conference Proceedings
PublisherData powered by TypesetAmerican Institute of Physics Inc.
ISSN0094243X
Open AccessNo
Concepts (20)
  •  related image
    Composite materials
  •  related image
    Cracks
  •  related image
    Delamination
  •  related image
    Experiments
  •  related image
    Imaging techniques
  •  related image
    Nondestructive examination
  •  related image
    Surface waves
  •  related image
    Ultrasonic transducers
  •  related image
    Ultrasonic waves
  •  related image
    Visualization
  •  related image
    Wave propagation
  •  related image
    AIR-COUPLED
  •  related image
    AIR-COUPLED ULTRASONIC TRANSDUCER
  •  related image
    C-scan
  •  related image
    Excitation frequency
  •  related image
    Experimental methods
  •  related image
    PWAS
  •  related image
    ULTRASONIC LAMB WAVES
  •  related image
    VISUALIZATION IMAGES
  •  related image
    Ultrasonic testing