Influence of the Frequency Behavior of Arall and Glare on the Ultrasonic C-Scan Inspection

  • Theo M. Modderman


Fibre Metal Laminates (FML’s) are new types of materials which are of interest to the aerospace industry. Two examples are ARALL and GLARE. The materials are composed of thin layers of aluminum bonded together with aramid (ARALL) or glass (GLARE) fibre reinforced layers (which will be called the aramid or the glass layer, see figure 1). The materials are lighter than aluminum sheets of the same (total) thickness and have a superior fatigue behavior.


Transmission Spectrum Attenuation Coefficient Transmission Coefficient Aluminum Layer Multiple Reflection 
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  1. 1.
    L.M. Brekhovskikh, Waves in layered media. Second edition, Applied Mathematics and Mechanics, no. 16., Academic Press Inc., 1980Google Scholar
  2. 2.
    T.M. Modderman and W.F. Pronker, US Patent No. 5,303,590 (19 april 1994)Google Scholar

Copyright information

© Plenum Press, New York 1996

Authors and Affiliations

  • Theo M. Modderman
    • 1
  1. 1.Fokker Aircraft B.V.SchipholThe Netherlands

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