Carbon fiber reinforced polymer composites (CFRP) are materials of choice in the advanced aerospace structures. The operating temperatures of the polymer matrix is quite limited, furthermore at temperatures above glass transition, a rapid degradation of the polymer matrix occurs, which leads to deterioration in composite thermal and mechanical properties. It is observed that the temperature and heating rate cause nonlinear changes in the composite material properties. Micromechanics and FEA based computational models are developed to model the change in properties of the material undergoing thermal degradation. Physics based modeling strategies and RVE generation, representative of thermal degradation of the material are discussed. Numerical homogenization is performed to obtain the effective temperature dependent thermal and mechanical properties, which are used to inform macroscopic models. Lightning strike thermal damage on CFRP structures is modeled and validated with experimental data.
Teja Konduri is a Ph.D. student in the Department of Aerospace and Mechanical Engineering at the University of Arizona. His research advisor is Prof. Olesya Zhupanska, and his research interests include computational analysis of polymer matrix composites and thermal ablation.
Konduri received his MS degree in 2013 from Ecole Nationale Supérieure des Mines de Douai, France and he received his BS degree in mechanical engineering in 2011 from the University of Pune, India.