Creep behavior and modeling of neat, talc-filled, and short glass fiber reinforced thermoplastics
Abstract
Creep behavior of neat, talc-filled, and short glass fiber reinforced injection molded thermoplastic composites were investigated and modeled at room and elevated temperatures. Creep strength decreased and both creep strain and creep rate increased with increasing temperature. The temperature effect was more significant for samples with glass fibers in the transverse to the load direction, as compared with the longitudinal direction. The Larson-Miller parameter was able to correlate the creep rupture data of all materials. The Monkman-Grant relation and its modification were successfully used to correlate minimum creep rate, time to rupture, and strain at rupture data. The Findley power law and time-stress superposition principle (TSS) were used to represent nonlinear viscoelastic creep curves. Long-term creep behavior was also satisfactory predicted based on short-term test data using the TSS principle.
Publication Title
Composites Part B: Engineering
Recommended Citation
Eftekhari, M., & Fatemi, A. (2016). Creep behavior and modeling of neat, talc-filled, and short glass fiber reinforced thermoplastics. Composites Part B: Engineering, 97, 68-83. https://doi.org/10.1016/j.compositesb.2016.04.043
