Nondestructive characterization is a critical input to lifecycle management of composite structures. Characterization may be achieved through model-based inversion of an ultrasound inspection; however, this approach requires a validated forward model that simulates the ultrasonic response to representative damage. In this work, the tailored ultrasound finite element simulation code PZFlex is exercised for normal incidence and oblique angle inspections of a composite material with ultrathin Teflon inserts. The quality of the model is evaluated quantitatively for the normal incidence case and qualitatively for the oblique angle case. Results demonstrate that validation has been achieved for the normal incidence configuration, while the oblique angle configuration requires further evaluation.
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8 May 2019
45TH ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLUME 38
15–19 July 2018
Vermont, USA
Research Article|
May 08 2019
Ultrasound forward model validation of normal incidence longitudinal wave and angle beam shear wave inspection of a quasi-isotropic composite layup with embedded damage
John Wertz;
1
Air Force Research Laboratory, Wright-Patterson AFB
, OH 45433, USA
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Josiah Dierken;
Josiah Dierken
2
University of Dayton Research Institute
, Dayton, OH 4546, USA
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David Zainey;
David Zainey
2
University of Dayton Research Institute
, Dayton, OH 4546, USA
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Norm Schehl;
Norm Schehl
2
University of Dayton Research Institute
, Dayton, OH 4546, USA
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John C. Aldrin
John C. Aldrin
3
Computational Tools
, Gurnee, IL 60031, USA
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AIP Conf. Proc. 2102, 020010 (2019)
Citation
John Wertz, Josiah Dierken, David Zainey, Norm Schehl, John C. Aldrin; Ultrasound forward model validation of normal incidence longitudinal wave and angle beam shear wave inspection of a quasi-isotropic composite layup with embedded damage. AIP Conf. Proc. 8 May 2019; 2102 (1): 020010. https://doi.org/10.1063/1.5099714
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