Temperature-frequency-dependent mechanical properties model of epoxy resin and its composites

Temperature-frequency-dependent dynamic mechanical properties of epoxy resin and glass/epoxy composites were studied at different loading modes by dynamic mechanical analysis. An improved temperature-dependent storage modulus model was developed to describe the storage modulus of the epoxy resin and glass/epoxy composites. A new and simple loss modulus model including two specific physical parameters was also developed. In addition, a model that can describe the temperature-frequency-dependent mechanical properties was established by combining the storage modulus model or loss modulus model with the Arrhenius equation. All of the model predictions showed very good agreements with the experimental results.