Experimental Investigation of Rotating Fatigue Behavior in ۳D‑Printed Engineering Polymer Specimens

My current research focuses on the experimental investigation of rotating fatigue behavior in 3D-printed engineering polymer specimens. Additive manufacturing, particularly fused filament fabrication and related 3D printing techniques, has gained significant attention in recent years due to its ability to produce lightweight, complex, and customized components. However, for the reliable use of 3D-printed polymer parts in real engineering applications, it is essential to understand their mechanical performance under cyclic and repeated loading conditions.

In this study, the rotating fatigue behavior of specimens manufactured from engineering polymers is investigated experimentally. The research aims to evaluate the influence of important printing and material parameters, such as polymer type, build orientation, infill percentage, raster angle, layer thickness, and internal structure, on fatigue life, crack initiation, crack propagation, and final failure mode. Since 3D-printed parts often exhibit anisotropic behavior due to the layer-by-layer manufacturing process, analyzing their fatigue response is highly important for improving design reliability.

The expected findings of this research can contribute to better material selection, optimization of printing parameters, and improved structural design of polymer components produced by additive manufacturing. Moreover, the results may help engineers and researchers predict the service life of 3D-printed parts more accurately and promote their safer application in mechanical, industrial, and functional components subjected to cyclic loading.