In this report we present the results of the analysis and experimental study of defect detection with Laser Doppler Vibrometry (LDV). The Non-Destructive Inspection (NDI) procedure is based on the vibrational mode evaluation for a test-object with specified defect parameters. To evaluate the procedure a clamped aluminum drum with radius R was selected as the test-object. The introduced defect was a thickness loss of 2.5%, 5.0% and 7.5% at the central part of the drum. The data from computational examination, based on finite element analysis, are compared with experimental data. Additionally, we present data from interrogation of a multilayer (carbon composite) element with preset defects in a specific layer and examples of corrosion detection. The experiments show that the proposed technique enables reliable defect detection, location, and quantification.


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    Titel :

    Opto-acoustical sensor to examine the structural integrity of complex systems


    Beteiligte:
    Markov, V. (Autor:in) / Trolinger, J. (Autor:in) / Webster, J. (Autor:in) / Pardoen, G. (Autor:in)


    Erscheinungsdatum :

    01.01.2002


    Format / Umfang :

    1525769 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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