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Model-based damage detection in piezoelectric fiber based composites


Hatem,  Tarek M.
Centre for Simulation Innovation and Advanced Manufacturing, The British University in Egypt, El-Sherouk City, Cairo, Egypt;
Microstructure Physics and Alloy Design, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

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Shalan, K. M., AbdelMeguid, M. E., Hatem, T. M., Hegazi, H. A., & Bahei-El-Din, Y. A. (2018). Model-based damage detection in piezoelectric fiber based composites. In T. S. Srivatsan, Y. Zhang, & W. C. Harrigan (Eds.), Minerals, Metals and Materials Series (pp. 119-131). Springer Nature.

Piezoelectric Fiber-based Composites (PFCs) have significant potential as smart materials given their superior mechanical properties over piezoelectric wafers. Therefore, reliable models are needed to accurately predict PFCs behavior including inherent heterogeneity and coupled electro-mechanical fields. This paper offers a multi-resolution model (micro and macro) that calculates the homogenized moduli of heterogeneous PFCs including the coupled electro-mechanical field based on Transformation Field Analysis (TFA). The calculated properties from TFA micro analysis is used in a macro-scale finite element analysis to model the dynamic behavior of PFCs in macro-scale. Numerical dynamic analysis incorporates a simple structure in pristine condition and in two damage conditions, namely a delamination damage and an impact-induced damage, modeled using both modal analysis and implicit dynamic analysis. © The Minerals, Metals Materials Society 2018.