Estimating the creep behavior of glass-fiber-reinforced polyamide considering the effects of crystallinity and fiber volume fraction

摘要: The time-temperature superposition principle (TTSP) is often used to estimate the viscoelastic behavior of polymers. It can also be evaluate influence a given variable, or set variables, on properties. In this research, effects time, temperature, fiber volume fraction and relative crystallinity polyamide (PA) glass fiber-reinforced (GFRPA) were investigated using under each conditions. crystallinities PA GFRPA, which ranged from 33 45%, controlled by adjusting duration crystallization as 250 °C. Creep tests carried out with these materials, creep compliance curves condition obtained. Using curves, master for grand generated show relationships between fraction, crystallinity, parameters. Furthermore, great-grand curve was predict in an arbitrarily condition. predicted data good agreement experimental results. A method estimating deformation taking into account influencing variables developed. applied crystallinity. Grand obtained shifting corresponding curves. This study demonstrates that behaviors plastics estimated shift factors curve. yielded estimates fitted well Based our findings, it should possible control resins controlling matrix material.