FRP component design using forming simulations / Lothar Kroll in JEC COMPOSITES MAGAZINE, N° 115 (08-09/2017)  

[article]  inJEC COMPOSITES MAGAZINE > N° 115 (08-09/2017) . - p. 61-65 Titre : FRP component design using forming simulations Type de document : texte imprimé Auteurs : Lothar Kroll, Auteur ; Brands, Dennis, Auteur ; Brymerski, Wojciech, Auteur ; Haanappel, Sebastiaan, Auteur ; Meyer, Marcel, Auteur ; Wolfgang Nendel, Auteur Année de publication : 2017 Article en page(s) : p. 61-65 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Automobiles -- Matériaux Composites à fibres de verre Composites à fibres de verre -- Propriétés mécaniques Polyamide 6 Procédés de fabrication Stratifiés Index. décimale : 668.4 Plastiques, vinyles Résumé : The development of automotive components is governed by many criteria related to energy, materials and cost issues, as well as environmental requirements. These complex problems lead to the need for reliable simulation technologies to improve forming prediction and optimize complex assembled lightweight components using fiber-reinforced thermoplastic materials. During the first step of the investigation described in this paper, the developed simulation approach is shown to be able to determinate the optimum blank geometry for the manufacturing of parts, which leads to the best match with the designed part geometry. Finally, the adopted simulation method has shown its ability to perform virtual optimization of composite components. Note de contenu : - ASSEMBLED COMPOSITE COMPONENT : Component design - Manufacturing process - SIMULATION APPROACH FOR COMPOSITE LAMINATES : Simulation approach for composite laminates - Model input - Tooling input - Laminate structure input - Processing steps input - INVERTIGATION OF VIRTUAL AND ACTUAL FORMING : Validation of the formed component - Optimization potential by exploration - FIGURES : 1. Complex assembled lightweight battery carrier made of organo sheets, an injection-moulded rib component and metal bushings - 2. Complete process chain with ratating worktable for manufacturing a complex battery carrier - 3. AniForm shell element and input to simulate composite components - 4. Input and output data of the simulation - 5. Laminate blank and forming tool elements considered in the simulation model for composite components forming - 6. AniForm model's qualitative in-plane shear response at 270°C and three different extension speeds, as calibrated on "glass fibre/PA6" measurement data from bias extension experiments - 7. AniForm model's qualitative bending response at 270°C and three different bleding speeds, as calibrated on "glass fibre/PA6" measurement data from rhemeter bending experiments - 8. AniForm model's qualitative friction response at 270°C and three different sliding velocities, and three different normal pressures, as calibrated on "glass fibre/PA6" measurement data from friction experiments - 9. Raster grid on a composite component after forming ; deformation with a raster grid calculated by simulation - 10. Formed component with simulation of stresses and wrinkles ; simulation of the designed vs. simulated bottom part - 11. Optimized blank outline a nearly constant clearance with respect to the edge for a stable injection moulding process - 12. Comparison of the original blank with the optimized blank outline resulting from the simulation - 13. Alternative process configuration with new blank holder and changed forming direction - 14. Forming instances at 4 mm remaining tool travel for the initial and alternative process configurations En ligne : https://drive.google.com/file/d/1wVxlQM8gg-7zwizPSHSnTUqPgJymUAa4/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29202 [article]

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