Title: Verification and Validation of Integrated Design and Manufacturing Analysis Tool for AFP Structures

Authors: August Noevere, Craig Collier

DOI: 10.33599/nasampe/s.21.0578

Abstract: The design of structures for Automated Fiber Placement (AFP) can be a challenging problem for structures that have significant double curvature, such as the forward nose of a fuselage. A software tool has been developed under the National Aeronautics and Space Administration (NASA) Advanced Composites Project (ACP) to address many of the challenges of designing AFP structures. The tool, dubbed the “Central Optimizer” is able to incorporate manufacturing data in the early stages of the design process to reduce the number and severity of design changes needed downstream to accommodate manufacturing requirements. This data includes material overlaps and gaps due to path convergence/divergence, fiber angle deviation, as well defects in the tows themselves such as puckers and wrinkles. The Central Optimizer is used to extract this data from other tools associated with the AFP manufacturing process and map it to the structural analysis Finite Element Model (FEM) in HyperSizer, where laminate optimization takes place. The present work describes the application of the Central Optimizer to several examples, including a saddle tool, wing skin, and fuselage skin. For the fuselage skin, validation was also performed with two builds comparing the resulting manufactured panels with and without the use of the Central Optimizer and HyperSizer.

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Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000578

Pages: 22

Price: FREE