Akademik Veri Yönetim Sistemi
ASERC 3rd International Conference On Health, Engineering, Architecture And Mathematics November 14 - 16, 2025 - Istanbul, İstanbul, Türkiye, 14 - 16 Kasım 2025, ss.184-192, (Tam Metin Bildiri)
This study investigated the compressive behavior of three popular Ternary Periodic Minimal Surface (TPMS) structures (Gyroid, Diamond, and Primitive) fabricated from PLA using Fused Deposition Modeling (FDM). All samples were fabricated using the same printing parameters, an infill density of 30%, and equivalent relative densities. Cylindrical samples with a diameter of 12 mm and a height of 25 mm were fabricated using a Bambu Lab 3D printer set at 220 °C for the nozzle and 65 °C for the bed temperature. Quasi-static compression tests were performed on each TPMS geometry at a constant speed of 1 mm/min. Experimental results showed different mechanical responses depending on the TPMS structure. With a maximum peak load of approximately 640 N, the Gyroid structure outperformed the Diamond (560 N) and Primitive (340 N) structures. Thanks to its uniform curvature and continuous load transfer paths, the Gyroid also demonstrated the most stable deformation behavior and highest energy absorption capacity. Conversely, the open, less connected skeleton of the Primitive structure led to premature buckling and brittle failure. These results indicate that even at the same relative densities, the compressive performance of TPMS cages is strongly affected by the geometric topology.