Advances in in situ inspection of automated fiber placement systems

Peter D. Juarez; K. Elliott Cramer; Jeffrey P. Seebo

doi:10.1117/12.2223028

11 May 2016 Advances in in situ inspection of automated fiber placement systems

Peter D. Juarez, K. Elliott Cramer, Jeffrey P. Seebo

Proceedings Volume 9861, Thermosense: Thermal Infrared Applications XXXVIII; 986109 (2016) https://doi.org/10.1117/12.2223028
Event: SPIE Commercial + Scientific Sensing and Imaging, 2016, Baltimore, MD, United States

Abstract

Automated Fiber Placement (AFP) systems have been developed to help take advantage of the tailorability of composite structures in aerospace applications. AFP systems allow the repeatable placement of uncured, spool fed, preimpregnated carbon fiber tape (tows) onto substrates in desired thicknesses and orientations. This automated process can incur defects, such as overlapping tow lines, which can severely undermine the structural integrity of the part. Current defect detection and abatement methods are very labor intensive, and still mostly rely on human manual inspection. Proposed is a thermographic in situ inspection technique which monitors tow placement with an on board thermal camera using the preheated substrate as a through transmission heat source. An investigation of the concept is conducted, and preliminary laboratory results are presented. Also included will be a brief overview of other emerging technologies that tackle the same issue.

Citation Download Citation

Peter D. Juarez, K. Elliott Cramer, and Jeffrey P. Seebo "Advances in in situ inspection of automated fiber placement systems", Proc. SPIE 9861, Thermosense: Thermal Infrared Applications XXXVIII, 986109 (11 May 2016); https://doi.org/10.1117/12.2223028

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