Akademik Veri Yönetim Sistemi
13. Uluslararası İstanbul Bilimsel Araştırmalar Kongresi , İstanbul, Türkiye, 1 - 03 Ekim 2024, ss.679-693, (Tam Metin Bildiri)
This study focuses on developing a numerical model to accurately predict the orthotropic mechanical properties of polymer parts produced through additive manufacturing, while ensuring compatibility with experimental data. To achieve this, the Representative Volume Element (RVE) method was employed, a widely used technique that allows for the precise modeling of complex material structures. The design of the RVE model was informed by high-resolution Scanning Electron Microscope (SEM) and optical microscope images, enabling an accurate representation of the polymer's internal structure. The numerical simulations were carried out using LS-DYNA software, for analyzing material behavior under various conditions. The results of these simulations were then compared to experimental test results for validation purposes. Two different RVE models were created, one with 0-0 raster angles and the other with 0-90 raster angles, which represent common fiber orientations in additive manufacturing. Additionally, both models were analyzed for two fill ratios: 100% and 50%, simulating fully dense and partially filled polymer parts. The findings from this study indicate a strong correlation between the numerical data and the experimental results, particularly for parts with a 100% fill ratio. This suggests that the developed model can reliably predict the mechanical behavior of polymer parts under various manufacturing conditions,making it a useful tool for optimizing additive manufacturing processes.