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Digital Ply Tracing Software for Composite Repairs
Technical Paper
2019-01-1388
ISSN: 0148-7191, e-ISSN: 2688-3627
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Event:
AeroTech Americas
Language:
English
Abstract
With the increasing usage of composites for aerodynamic surfaces, the use of bonded composite repair processes are becoming more common. The repair process remains a largely manual process, with repair technicians scarfing or stepping, tracing the plies, fabricating repair patches and finally bonding the patch. The patch fabrication process becomes increasingly tedious and tiring due to cutting and tracing of each individual ply twice for thermal surveying and the final repair patch. We have developed a system that can replace the tracing and cutting components of the fabrication process using low cost, commercial off the shelf (COTS) tools. We present the ply boundary extraction method used and detail the nesting algorithm used to produce the final plies. Our software is benchmarked against the manual process with a list of successfully cut materials using a low cost fabric cutter with a steel drag blade. Our system provides up to 60% improvement in ply fabrication times for lower strength materials (e.g. fiberglass) and comparable times for high strength materials (e.g. carbon fiber).
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Citation
Vongchanh, L. and Szarski, M., "Digital Ply Tracing Software for Composite Repairs," SAE Technical Paper 2019-01-1388, 2019, https://doi.org/10.4271/2019-01-1388.Data Sets - Support Documents
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References
- Georgeson , G. Trends in R&D for Nondestructive Evaluation of In-Service Aircraft 5th International Symposium on NDT in Aerospace, Conference Proceedings
- Erlbacher , E.A. and Godwin , L.E. 2000
- Holzhter , D. , Pototzky , A. , Hhne , C. , and Sinapius , M. Automated Scarfing Process for Bonded Composite Repairs Berlin, Heidelberg Springer 2013 297 307 http://dx.doi.org/10.1007/978-3-642-29190-6_23
- Blohowiak , K.Y. , Watson , M. N. , Belcher , Castro , M.A.E. , Baldwin , J. , and Koch , S. Laser Scarfing for Adhesive Bonded Composite Repairs SAMPE, Conference Proceedings
- T. C. Metrology https://twincoastmetrology.com/composite-repair-plygage/
- Wang , C.H. and Gunnion , A.J. On the Design Methodology of Scarf Repairs to Composite Laminates Composites Science and Technology 68 1 35 46 2008 http://www.sciencedirect.com/science/article/pii/S0266353807002369
- Faugeras , O. Three-Dimensional Computer Vision: A Geometric Viewpoint MIT Press 1993
- http://scikit-image.org/docs/dev/api/skimage.transform.html#skimage.transform.ProjectiveTransform
- Lindeberg , T. Feature Detection with Automatic Scale Selection International Journal of Computer Vision 30 2 79 116 1998
- http://scikit-image.org/docs/dev/api/skimage.feature.html#skimage.feature.blob_dog
- Gevrekci , M. and Gunturk , B.K. Illumination Robust Interest Point Detection Computer Vision and Image Understanding 113 4 565 571 2009 http://www.sciencedirect.com/science/article/pii/S1077314208001999
- Davies , E.R. Machine Vision: Theory, Algorithms, Practicalities Elsevier 2004
- Weeks , A.R. Fundamentals of Electronic Image Processing Bellingham SPIE Optical Engineering Press 1996
- De Boor , C. , De Boor , C. , Mathématicien , E.-U. , De Boor , C. et al. A Practical Guide to Splines New York Springer-Verlag 1978 27
- A. GFM-GmbH Steyr http://www.gfm.at/en/m_ne1.html
- SigmaTEK https://www.sigmanest.com/
- Cuninghamegreen , R. Geometry, Shoemaking and the Milk Tray Problem New Scientist 123 1677 50 53 1989
- Holland , J.H. Adaptation in Natural and Artificial Systems: An Introductory Analysis with Applications to Biology, Control, and Artificial Intelligence MIT Press 1992
- Barber , C.B. , Dobkin , D.P. , and Huhdanpaa , H. The Quickhull Algorithm for Convex Hulls ACM Transactions on Mathematical Software (TOMS) 22 4 469 483 1996
- Burke , E.K. , Hellier , R.S. , Kendall , G. , and Whitwell , G. Complete and Robust No-Fit Polygon Generation for the Irregular Stock Cutting Problem European Journal of Operational Research 179 1 27 49 2007
- https://knkusa.com/zing-orbit/