Non-destructive evaluation of kissing bonds using local defect resonance (LDR) spectroscopy : a simulation study

Delrue, Steven and Tabatabaeipour, Seyed Morteza and Hettler, Jan and Van Den Abeele, Koen (2015) Non-destructive evaluation of kissing bonds using local defect resonance (LDR) spectroscopy : a simulation study. Physics Procedia, 70. pp. 648-651. ISSN 1875-3892 (https://doi.org/10.1016/j.phpro.2015.08.067)

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Abstract

With the growing demand from industry to optimize and further develop existing Non-Destructive Testing & Evaluation (NDT&E) techniques or new methods to detect and characterize incipient damage with high sensitivity and increased quality, ample efforts have been devoted to better understand the typical behavior of kissing bonds, such as delaminations and cracks. Recently, it has been shown experimentally that the nonlinear ultrasonic response of kissing bonds could be enhanced by using Local Defect Resonance (LDR) spectroscopy. LDR spectroscopy is an efficient NDT technique that takes advantage of the characteristic fre- quencies of the defect (defect resonances) in order to provide maximum acoustic wave-defect interaction. In fact, for nonlinear methodologies, the ultrasonic excitation of the sample should occur at either multiples or integer ratios of the characteristic defect resonance frequencies, in order to obtain the highest signal-to-noise response in the nonlinear LDR spectroscopy. In this paper, the potential of using LDR spectroscopy for the detection, localization and characterization of kissing bonds is illustrated using a 3D simulation code for elastic wave propagation in materials containing closed but dynamically active cracks or delaminations. Using the model, we are able to define an appropriate method, based on the Scaling Subtraction Method (SSM), to determine the local defect resonance frequencies of a delamination in a composite plate and to illustrate an increase in defect nonlinearity due to LDR. The simulation results will help us to obtain a better understanding of the concept of LDR and to assist in the further design and testing of LDR spectroscopy for the detection, localization and characterization of kissing bonds.

  • Item type:Article
    ID code:85114
    Dates:
    Date
    Event
    19 September 2015
    Published
    1 April 2015
    Accepted
    Notes:S. Delrue, M. Tabatabaeipour, J. Hettler, K. Van Den Abeele, Non-Destructive Evaluation of Kissing Bonds using Local Defect Resonance (LDR) Spectroscopy: A Simulation Study, Physics Procedia, Volume 70, 2015, Pages 648-651, https://doi.org/10.1016/j.phpro.2015.08.067
    Subjects:Science > Physics
    Department:Faculty of Engineering > Electronic and Electrical Engineering
    Depositing user: Pure Administrator
    Date deposited:13 Apr 2023 10:52
    Last modified:09 Apr 2024 04:03
    URI:https://strathprints.strath.ac.uk/id/eprint/85114
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