Project 3:  Integration of Carbon Fiber Composites with Shape Memory Polymers for Aircraft Repair Applications

Shape memory polymers (SMPs) represent a class of smart materials that exhibit reversible deformation capabilities based on external stimuli, predominantly heat. This research project explores the integration of Thermoplastic Polyurethane (TPU)-based SMPs with carbon fiber composites for enhanced mechanical strength and added functionality, particularly electrical conductivity. The study involves formulating feedstocks using a torque mixer and extruding them into filaments suitable for 3D printing. Optimization of print parameters aims to produce robust SMP parts characterized by their mechanical and material properties. By incorporating carbon fibers into SMPs, we aim to evaluate the resulting composite's suitability for potential aircraft applications, such as serving as durable repair patches for surface-level dents and holes. The project leverages additive manufacturing techniques to rapidly prototype and assess SMP-based composites, demonstrating the utility and versatility of these materials in advanced manufacturing and aerospace engineering.