18 June 2002 Feasibility of healing delaminations in an AS4/PEEK composite plate
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Abstract
This paper describes the study carried out to determine the possibility of healing an AS4/PEEK composite plate that was impacted at a low velocity to create the delaminations. Images of the AS4/PEEK composite plates were obtained prior to the impact, to ensure it is free of any gross defects that could have been imparted during the manufacturing of the composite plate. A drop-weight was used to impact the composite plate at a low velocity and the incident energy of impact was maintained at 2.26 ft-lb. Interior images of the composite plates were obtained after the impact and prior to healing by a C-scan imaging system. The healing process was conducted at controlled temperature and pressure. The healed specimens were imaged again by the C-Scan imaging system. The results obtained by analyzing the images show a reduction in the size of the delaminations.
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Marie Laczynski, Marie Laczynski, Subash B. Jayaraman, Subash B. Jayaraman, Timothy Craychee, Timothy Craychee, Chiaki Miyasaka, Chiaki Miyasaka, Bernhard R. Tittmann, Bernhard R. Tittmann, } "Feasibility of healing delaminations in an AS4/PEEK composite plate", Proc. SPIE 4704, Nondestructive Evaluation and Health Monitoring of Aerospace Materials and Civil Infrastructures, (18 June 2002); doi: 10.1117/12.470716; https://doi.org/10.1117/12.470716
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