Title: Computer Aided Process Planning for Automated Fiber Placement

Authors: Joshua A. Halbritter, Ramy Harik

DOI: 10.33599/nasampe/s.21.0572

Abstract: This article presents a state-of-the-art software for Computer Aided Process Planning (CAPP) in the context of Automated Fiber Placement (AFP). A ply level optimization is performed by the exploration of process planning parameters, namely layup strategies and starting point. The virtual layup of these plies enables the measurement of geometry-based defects such as gaps, overlaps, angle deviation and steering. To quantify these different scenarios, measurements which describe the instances and severity of these defects are established through maximum allowable thresholds. Measurements are combined with a weighting process enabled by the Analytical Hierarchy Process, where relative importance are defined then used to generate normalized scores for each ply candidate. Then, subsequent ply scenarios can be strategically generated to reduce the instances and severity of the defects. Process planning represents an essential stage of the AFP workflow. It develops efficient machine processes based upon the working material, composite design, and manufacturing resources. The current state of process planning requires a high degree of interaction from the process planner and could greatly benefit from increased automation. Therefore, CAPP was developed around the list of key functions which were identified as benefiting the most from automation.

References: [1] J. Halbritter, R. Harik, C. Saidy, A. Noevere and B. Grimsley, "Automation of AFP Process Planning Functions: Importance and Ranking," in SAMPE 2019 - Charlotte, NC, 2019. https://doi.org/10.33599/nasampe/s.19.1592 [2] R. Harik, C. Saidy, S. Williams, Z. Gurdal and B. Grimsley, "Automated fiber placement defect identity cards: cause, anticipation, existence, significance, and progression," 2018. [3] A. Noevere, C. Collier, R. Harik and J. Halbritter, "Development of a Design for Manufacturing Tool for Automated Fiber Placement Structures," in AIAA Scitech 2019 Forum, 2019. https://doi.org/10.2514/6.2019-0520 [4] A. Noevere, C. Collier and R. Harik, "Integrated Design and Manufacturing Analysis for Automated Fiber Placement Structures," in SAMPE 2019 - Charlotte, NC, 2019. https://doi.org/10.33599/nasampe/s.19.1500 [5] Rousseau, G., Wehbe, R., Halbritter, J., & Harik, R., "Automated Fiber Placement Path Planning: A state-of-the-art review," Computer-Aided Design and Applications 16(2) (2019): 172-203. https://doi.org/10.14733/cadaps.2019.172-203

Conference: SAMPE NEXUS 2021

Publication Date: 2021/06/29

SKU: TP21-0000000572

Pages: 10

Price: FREE