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- W4317583532 abstract "Weight is a critical metric for aerospace structures, and one possible way to reduce weight is to improve performance using hybrid standard-ply/thin-ply laminates from a single material system. Previous studies showed benefits for stiffness, strength, reduced damage after impact, and increased compression-after-impact strength for these hybrid laminates. Another study suggested that performance of compression-loaded notched hybrid laminate specimens performed better than standard-ply laminates under compression, but the standard-ply laminates performed better under tension loading. However, analysis predicted the failure load and mode better for the hybrid laminates. An analytical study was conducted that led to several hybrid laminate designs being identified to use in a follow-on testing regiment, which is planned to further study the notched hybrid composite performance under compression and tension load. Described herein is a manufacturing method to efficiently manufacture hybrid laminates using automated fiber placement using a 16-tow head where 8 tows are standard-ply and 8 tows are thin-ply. The method saves time in that it eliminates the need to change spools of material when switching from standard-ply to thin-ply lamina, and reduces the waste associated with changing of spools. The method is ideal for small manufacturing operations or research facilities that have only a single head, and the method was successfully applied at the NASA Langley Research Center (LaRC) Integrated Structural Assembly of Advanced Composites (ISAAC) facility to manufacture nine panels that will be used for the follow-on notched specimen testing of hybrid and standard laminates." @default.
- W4317583532 created "2023-01-21" @default.
- W4317583532 creator A5027741150 @default.
- W4317583532 creator A5044314473 @default.
- W4317583532 date "2023-01-19" @default.
- W4317583532 modified "2023-10-18" @default.
- W4317583532 title "Manufacture of Hybrid Standard-Ply/Thin-Ply Carbon/Epoxy Panels for Notched Test Specimens" @default.
- W4317583532 doi "https://doi.org/10.2514/6.2023-0957" @default.
- W4317583532 hasPublicationYear "2023" @default.
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