Akademik Veri Yönetim Sistemi
4th International Civil Engineering & Architecture Conference, Trabzon, Türkiye, 17 - 19 Mayıs 2025, ss.1922-1927, (Tam Metin Bildiri)
Polycarbonate (PC) is a widely used material known for its impact resistance, transparency and thermal properties. However, there are challenges in capturing its behavior under different temperatures and strain rates. The stress drop after yielding and subsequent plastic flow behavior are examples of the major challenges that classical hardening models cannot represent. In this work, a robust constitutive model is developed to accurately describe the mechanical response of PC. The model is based on experimental data from tensile and compression tests performed at various temperatures and strain rates. First, a validation study was carried out for the use of the developed model in a finite element program. The developed model was then implemented in Abaqus/Explicit for impact simulations, allowing realistic predictions of failure modes, crack propagation and fracture behavior. The simulation results were confirmed to show improved accuracy in capturing the temperature and strain rate dependent response of the PC. This research advances predictive modeling for PC, making it highly valuable for applications in protective structures in civil engineering, automotive crashworthiness, and impact-resistant materials.