Title: Fast and Accurate Design Analysis for Fiber Placement Process

Authors: Yvan Blanchard

DOI: 10.33599/nasampe/c.19.0820

Abstract: This paper focuses on the design optimization of complex 3D composites structures made by additive manufacturing processes.

There are commercial CAD-CAM software solutions for detailed offline path programming, but there is a growing need for innovative tools and methodologies for doing trade off studies very early at design stage.

Most of technologies available on the market are not really suited to easily check and compare various design proposals, with an efficient compromise between accuracy and performances, especially for thick and large laminates.

The paper also describes how to analyze and validate design choices for structural strength, by transferring the accurate material data to CAE software.

A new innovative solution has been developed on top of the CATFIBER© software, allowing both designers and stress engineers to quickly analyze complex double-curved geometries.

References: 1. Wu KC. “Design and analysis of tow-steered composite shells using fiber placement”. In: Proceedings of the American Society for Composites 23rd Technical Conference. Memphis, TN, USA. 2008, doi: 10.4271/2012-01-0082 2. Croft, K., Lessard, L., Pasini, D., Hojjati, M., Chen, J., Yousefpour, A.: “Experimental study of the effect of automated fiber placement induced defects on performance of composite laminates”, Journal of Composite Part A, Composites: Part A, vol 42, pp 484–491, 2011, doi: 10.4271/2012-01-0082 3. Fayazbakhsh, K., Arian Nik, M.,Pasini, D., Lessard, L., Defect layer method to capture effect of gaps and overlaps in variable stiffness laminates made by Automated Fiber Placement, doi: 10.4271/2012-01-0082 4. NLR., Fibre steered skin design of composite thermoplastic horizontal stabilizer torsion box, Feb. 2017. 5. G. Gonzalez Lozano, A. Tiwari, C. Turner A design algorithm to model fibre paths for manufacturing of structurally optimized composite laminates. In: Composite Structures (2018), doi:10.1016/2018.07.088 6. AUTOMATED SIZING OF A COMPOSITE WING FOR THE USAGE WITHIN A MULTIDISCIPLINARY DESIGN PROCESS, Tobias Bach, DLR. 7. Design Optimization of a CFRP WingCover for the AFP ProcessChristian Ückert,Dominik Delisle,Tobias Bach, Prof. Dr.-Ing. Christian Hühne, Dr.-Ing. Jan StüveGerman Aerospace CenterDLR e.V., Institute ofComposite Structures and Adaptive Systems, Center for Lightweight-Production-Technology.

Conference: CAMX 2019

Publication Date: 2019/09/23

SKU: TP19-0820

Pages: 10

Price: $20.00