Nondestructive damage assessment in fiber reinforced composites with the pulsed ultrasonic polar scan |
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| Affiliation: | 1. Department of Materials Science and Engineering, Ghent university, Technologiepark-Zwijnaarde 903, 9052 Zwijnaarde, Belgium;2. Department of Physics, Catholic University of Leuven – KULAK, Etienne-Sabbelaan 52, 8500 Kortrijk, Belgium;3. Department Mechanics of Materials and Constructions, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussels, Belgium;1. Ecole Nationale Supérieure des Mines de Douai, Département Technologie des Polymères et Composite et Ingénierie Mécanique (TPCIM), 941 Rue Charles Bourseul, CS 10838, 59508 Douai Cedex, France;2. Université de Valenciennes et du Hainaut Cambrèsis, Département d’Opto-Acousto-Electronique, IEMN, UMR CNRS 8520, Mont Houy BP 311, 59313 Valenciennes Cedex, France;1. Department of Aeronautics and Astronautics, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8540, Japan;2. Aerospace Company, Kawasaki Heavy Industries, Ltd., Kakamigahara, Gifu 504-8710, Japan;1. Mechanics of Materials and Structures (UGent-MMS), Department of Materials, Textiles and Chemical Engineering (MaTCh), Ghent University, Technologiepark-Zwijnaarde 46, 9052 Zwijnaarde, Belgium;2. SIM Program M3 DETECT-IV, Technologiepark-Zwijnaarde 48, B-9052 Zwijnaarde, Belgium;1. Department of Materials Science & Engineering, Ghent University, Technologiepark-Zwijnaarde 903, B-9052 Zwijnaarde, Belgium;2. SIM STREAM program, Technologiepark 935, B-9052 Zwijnaarde, Belgium;3. SIM M3 program, Technologiepark 935, B-9052 Zwijnaarde, Belgium;1. Department of Chemical, Materials Engineering and Industrial Production, University of Naples Federico II, Piazzale Vincenzo Tecchio 80, 80125 Naples, Italy;2. CRdC Tecnologie scarl, Via Nuova Agnano 11, 80125 Naples, Italy;3. Institute for Polymers, Composites and Biomaterials, National Research Council, Via Campi Flegrei 34, 80078 Pozzuoli, Naples, Italy;1. Institute of Fundamentals of Machinery Design, Silesian University of Technology, 18A Konarskiego Street, 44-100 Gliwice, Poland;2. Air Force Institute of Technology, 6 Ks. Boleslawa Street, 01-494 Warsaw, Poland |
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| Abstract: | This study investigates the use of both amplitude and time-of-flight based pulsed ultrasonic polar scan (P-UPS) as a sophisticated non-destructive damage sensor for fiber reinforced composites. Focus is put on stiffness related damage phenomena, which are in general difficult to monitor nondestructively, and their associated signature in the P-UPS image. Various composite samples, with different damage states, have been inspected at multiple material spots with the P-UPS technique. The results demonstrate the capability of the P-UPS method to obtain a unique signature of the local material damage characteristics. Several indicators in the acquired P-UPS images have been identified from which the type and level of material degradation can be obtained. The P-UPS extracted characteristics are fully supported by simulations, conventional tests as well as visual inspection. |
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| Keywords: | Pulsed ultrasonic polar scan Fiber reinforced plastics Damage characterization NDT |
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