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The complexity of engineering structures dictates a paradigm shift from traditional inspection and damage detection techniques to more reliable and efficient approach. Smarts materials such as piezoelectric materials are being studied as onboard sensors to detect damage progression inside composite structures. Nevertheless, predictive models of such complex structures coupled to piezoelectric materials been absent, especially related to damage detection and prediction. In the current study, a multiscale approach is suggested to predict the behavior of piezoelectric fiber-based composites. Micromechanical model based on transformation field analysis is described to quantify the overall material properties of electrically active composite structure. Capitalizing on the extracted properties, single-phase analysis of a homogeneous structure is conducted using Carrera Unified formulation; a refined plate theory extended to include electric behavior of active materials. Results obtained here are validated against experimental results. Furthermore, the impact of damage on local and global fields is evaluated on macro-level through simulated voids inside a beam-like structure

A MULTISCALE-BASED MODEL FOR COMPOSITE MATERIALS WITH EMBEDDED PZT FILAMENTS FOR ENERGY HARVESTING