Abstract
StereoDIC is employed to quantify wrinkling on 6.35 mm wide and 0.16 mm thick carbon-epoxy tows during advanced fiber placement along straight and circular paths on a planar composite surface. Measurements obtained just after placement provide quantitative deformation fields, including the presence of out-of-plane wrinkles that occur during the placement process. Results show that wrinkles occur at locations where the substrate has defects. Results also show that wrinkles occur at other locations only when the radius of curvature is less than 2540 mm.
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Acknowledgements
Funding provided by Boeing Research Contract SSOWBRTW0915000 and associated matching funds provided by University of South Carolina Vice President for Finance Edward Walton via 15540 E250 is deeply appreciated. All materials and access to the Lynx® AFP facility provided by the McNair Aerospace Center, University of South Carolina is gratefully acknowledged. The technical support and assistance of the McNair technical staff, particularly Mr. Burton Rhodes, Jr. for tow placement, is gratefully acknowledged.
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Rajan, S. et al. (2020). Quantifying Wrinkling During Tow Placement on Curvilinear Paths. In: Lin, MT., et al. Advancements in Optical Methods & Digital Image Correlation in Experimental Mechanics, Volume 3. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-030-30009-8_2
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DOI: https://doi.org/10.1007/978-3-030-30009-8_2
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