Eryildiz, Meltem2024-03-132024-03-1320230025-53002195-8572https://doi.org/10.1515/mt-2022-0306https://hdl.handle.net/20.500.12662/3755In this study, the effect of the notch fabrication method (printing the notch on the part, and machining the notch) on the impact results of 3D-printed polylactic acid (PLA) was investigated. Sensitivity to build orientation was also noted in both test situations. The impact test specimens were printed using an FDM-based printer with or without a notch at various build and print orientations. Un-notched specimens were then machined to create notches. To simulate the impact effects, Ansys software was employed to create a finite element model, and the results of the finite element analysis were consistent with the experimental results. According to the findings, the impact strength of the specimens with 3D-printed notches increased by 11-38% compared to specimens whose notch was machined after the rectangular bars were 3D printed. In addition, it has been observed that the build and print orientations affect the impact strength.eninfo:eu-repo/semantics/closedAccessbuild orientationCharpy impact strengthfinite element analysisfused deposition modelingimpact testingArticle10.1515/mt-2022-03062-s2.0-851499925854303Q242365WOS:000945936400010N/A