Title :
Mode conversions of Lamb waves for inspection of disbonds
Author :
Sun, Keun J. ; Johnston, Patrick H.
Author_Institution :
Dept. of Phys., Coll. of William & Mary, Williamsburg, VA, USA
Abstract :
Disbond detection with Lamb waves is tested on lap splice joints and on laboratory specimens consisting of bonded aluminium sheets. Significant amplitude variation is observed between propagation over bond and disbond. Measurements conducted on laboratory specimens with different geometry of disbonds and on aircraft skins show results consistent with those obtained by standard C-scan ultrasonic test and other techniques
Keywords :
aluminium; flaw detection; laminates; surface acoustic waves; ultrasonic materials testing; Lamb waves; aircraft skins; amplitude variation; bonded Al sheets; disbond detection; inspection of disbonds; laminated structure; lap splice joints; mode conversions; Aircraft; Aluminum; Bonding; Geometry; Inspection; Laboratories; Measurement standards; Skin; Testing; Ultrasonic variables measurement;
Conference_Titel :
Ultrasonics Symposium, 1992. Proceedings., IEEE 1992
Conference_Location :
Tucson, AZ
Print_ISBN :
0-7803-0562-0
DOI :
10.1109/ULTSYM.1992.275898
