Micromechanical models for time-dependent multiphysics responses of polymer matrix smart composites

Stemming from the viscoelastic behavior of the polymer matrix, the effective material properties of smart composites with polymer matrix become time-dependent. This study has two focuses. Firstly, a micromechanics model for predicting the effective time-dependent properties of polymer matrix smart composites was developed. One important contribution of this model is that Laplace transformation and inversion commonly used for linear viscoelastic composites are avoided since all calculations are accomplished in the time domain. Secondly, by taking advantage of the predicted effective time-dependent properties a computation approach was proposed to simulate the effective multiphysics responses of multiphase smart composites subjected to multiphysics loadings. Excellent agreements are achieved between the predictions provided by the present models and ABAQUS.