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Authors: John T. Welter (Air Force Research Laboratory) , Daniel M. Sparkman (Air Force Research Laboratory) , Michael D. Uchic (Air Force Research Laboratory) , John C. Aldrin (Computational Tools) , David Zainey (University of Dayton) , Tyler Lesthaeghe (University of Dayton) , Vicki Kramb (University of Dayton)
Characterization of barely visible impact damage (BVID) in polymer matrix composites (PMCs) is necessary to use slow crack growth damage tolerance models and evaluate remaining life of PMC components. Azimuthally scanned angle-beam pulse echo ultrasound is investigated as a complimentary technique to normal incidence ultrasound inspection of BVID in PMCs to characterize delamination fields. It is found that there is a correlation between signals present in the azimuthally scanned angle-beam pulse echo ultrasound C-scans and transverse matrix cracks seen in X-ray computed tomography inspection. These transverse matrix cracks are not readily identifiable as transverse matrix cracks in normal incidence C-scan inspection.
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How to Cite: Welter, J. T. , Sparkman, D. M. , Uchic, M. D. , Aldrin, J. C. , Zainey, D. . , Lesthaeghe, T. . & Kramb, V. . (2019) “Azimuthally scanned angle-beam pulse echo ultrasound for characterization of impact damage in composites”, Review of Progress in Quantitative Nondestructive Evaluation.(0).