Experimental investigation of the structural performance of composite structures produced using additive manufacturing

This project is focused on investigating the structural performance of parts and structures produced using the latest additive manufacturing techniques. For additive manufacturing of test coupons, fused deposition modeling of fiber-reinforced polymer (RFP) and high-resolution low-force stereolithography (LFS) thermoset resin printing systems were employed. UV thermoset resin was used for LFS printing, while RFP printing adopted two different types of filaments: amorphous polycarbonate carbon fiber filaments and semi-crystalline Nylon 12 glass fiber filaments. For the experimental work, specimens were printed for tension, compression, and shear tests. Additionally, mode-II interlaminar fracture in these specimens was explored. The elastic modulus and strength values of these specimens were compared with the data of oven-cured T700G/2510 composites. The experimental work herein will be extended to develop damage models for 3D-printed structural parts and structures for aerospace and space applications.