Free Vibration Analysis of 3D-printed ABS, PET-G and PLA Curved Beam: Effects of Opening Angle, Curvature Radius, and Part Thickness

Additive manufacturing, commonly referred to as 3D printing, stands out for its ability to rapidly produce complex objects, contrasting with conventional manufacturing techniques such as machining, forging, welding, and powder sintering. Today, additive manufacturing is often used to create functional and lightweight final products. Therefore, free vibration analysis is crucial in the design process of structures composed of such materials. The objective of this study is to investigate the effects of variations in parameters such as opening angle, curvature radius, and thickness of 3D-printed curved beams made of PET-G, PLA, and ABS materials, which have clamped-clamped boundary conditions, on the in-plane vibration characteristics of the structure. The vibration parameters of the curved beam structure, modeled using the ANSYS finite element program, have been determined. Numerical results have been compared with findings from the literature to validate the accuracy and applicability of the proposed model. Consequently, it has been found that changes in the material and geometric properties of 3D-printed curved beams significantly influence the natural frequencies of the structure.