Ultrasonic guided waves are used to detect the delamination between skin and honeycomb of a composite helicopter rotor blade. Theoretical work is carried out for guided waves in the trailing edge of a rotor blade, which is a multilayer composite skin/NOMEX half space structure. The dispersion relation is obtained with the global matrix method. Theoretically driven experiments are conducted on a composite rotor blade section to illustrate the effect of delamination to through transmission ultrasonic energy. Animations will be shown to demonstrate the delamination detecting concept. The study of guided wave excitation and propagation provide analytical background for optimization of ultrasonic transducers.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Ultrasonic guided wave nondestructive testing for helicopter rotor blades


    Additional title:

    Zerstörungsfreie Prüfung von Hubschrauber-Rotorblättern mit geführten Ultraschallwellen


    Contributors:
    Qi, Xue (author) / Rose, Joseph L. (author) / Xu, Chunguang (author)


    Publication date :

    2008


    Size :

    7 Seiten, 7 Bilder, 8 Quellen


    Type of media :

    Conference paper


    Type of material :

    Storage medium


    Language :

    English




    Nondestructive evaluation of helicopter rotor blades using guided Lamb modes

    Chakrapani, Sunil Kishore / Barnard, Daniel / Dayal, Vinay | Tema Archive | 2014



    Ultrasonic Shear Wave Anti-Icing System for Helicopter Rotor Blades

    Palacios, J. L. / Smith, E. C. / Gao, H. et al. | British Library Conference Proceedings | 2006


    Helicopter rotor-blades

    Engineering Index Backfile | 1955


    Methodology for Testing Damaged Composite Helicopter Rotor Blades

    Vorotović, Goran / Bengin, Aleksandar / Mitrović, Časlav et al. | Springer Verlag | 2023